Release Notes for Cisco ME 2600X Series Ethernet Access Switch,
Cisco IOS Release 15.2(02)SA
First Published: February 08, 2013
Americas Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel: 408 526-4000
800 553-NETS (6387)
Fax: 408 527-0883
Text Part Number: OL-28851-01
© Cisco Systems, Inc. All rights reserved.
CHAPTER
1
Release Notes for Cisco ME 2600X Series
Ethernet Access Switch, Cisco IOS Release
15.2(02)SA
These release notes include important information about the Cisco IOS Release 15.2(02)SA release that runs
on the Cisco ME 2600X series ethernet access switches.
These release notes also include the limitations, restrictions, and caveats that apply to these releases.
You can verify that these release notes apply to your switch as follows:
• If you are installing a new switch, see the Cisco IOS release label on the rear panel of your switch.
• If your switch is on, use the show version privileged EXEC command. See the Determining the Software
Version section.
For the complete list of Cisco ME 2600X switch documentation, see the Related Documentation section.
You can download the switch software from this site (registered Cisco.com users with a login password):
http://www.cisco.com/cisco/software/navigator.html?a=ahttp://www.cisco.com/cisco/web/download/
index.htmli=rpm
• System Requirements, page 2
• Feature Support, page 11
• Limitations and Restrictions, page 13
• Using the Bug Toolkit, page 13
• Caveat List for Cisco IOS Release 15.2(02)SA, page 17
• Related Documentation, page 20
• Obtaining Documentation and Submitting a Service Request, page 21
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
OL-28851-01
1
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
System Requirements
System Requirements
These sections describes the system requirements for Cisco ME 2600X Series Ethernet Access Switch, Cisco
IOS Release 15.2(02)SA.
Memory Recommendations
To determine memory recommendations for software images (feature sets) in your Cisco IOS release, go to
the Cisco Feature Navigator home page and perform the following steps.
Procedure
Step 1
From the Cisco Feature Navigator home page, click Research Software.
Step 2
Select your software type from the drop-down list and choose the Release button in the "Search By" area.
Step 3
Step 4
Step 5
Step 6
Step 7
From the Major Release drop-down list, choose the appropriate major release.
From the Release drop-down list, choose the appropriate maintenance release.
From the Platform drop-down list, choose the appropriate hardware platform.
From the Feature Set drop-down list, choose the appropriate feature set.
The Image Details area will provide details on the specific image including the DRAM and flash memory
recommendations for each image. The Available Features area will list all the features that are supported by
the feature set (software image) that you chose.
Supported Hardware
Table 1: Supported Hardware
Device
Description
ME2600X-44FA-D-K9=
ME2600X Ethernet Access Switch 44xGE SFP w/
4x10GE SFP+ -48V Pwr ANSI
ME2600X-44FE-D-K9=
ME2600X Ethernet Access Switch 44xGE SFP w/
4x10GE SFP+ -48V Pwr ETSI
ME2600X-44FA-A-K9=
ME2600X Ethernet Access Switch 44xGE SFP w/
4x10GE SFP+ AC Pwr
ME2600X-FAN=
ME2600X Fan Tray with Filter
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
2
OL-28851-01
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
Determining the Software Version
Device
Description
SFP (Gigabit Ethernet) modules
ONS-SE-100-LX10, ONS-SI-100-LX10,
ONS-SI-100-FX, ONS-SE-100-BX10U,
ONS-SE-100-BX10D, GLC-BX-D, GLC-BX-U,
GLC-FE-100BX-D, GLC-FE-100BX-U,
ONS-SI-GE-SX, ONS-SC-GE-LX, ONS-SI-GE-LX,
ONS-SI-GE-ZX, ONS-SE-GE-ZX,
ONS-SE-GE-BXD, ONS-SE-GE-BXU,
ONS-SC-GE-BXU, ONS-SC-GE-BXD,
ONS-SI-GE-EX, ONS-SE-ZE-EL, ONS-SC-2G-xx.x,
ONS-SE-2G-1470, ONS-SE-2G-1490,
ONS-SE-2G-1510, ONS-SE-2G-1530,
ONS-SE-2G-1550, ONS-SE-2G-1570,
ONS-SE-2G-1590, ONS-SE-2G-1610
SFP (Ten Gigabit Ethernet) modules
ONS-SC+-10G-SR, ONS-SC+-10G-ER,
ONS-SC+-10G-LR, ONS-SE+-10G-LR,
ONS-SC+-10G-LRM, ONS-SC+-10G-ZR,
ONS-SC+-10G-30.3
SFP (Ten Gigabit Ethernet) copper modules
ONS-SC+-10G-CU1, ONS-SC+-10G-CU3,
ONS-SC+-10G-CU5, ONS-SC+-10G-CU7
Console cable
37-0822-01- CORD, CABLE, RJ45 TO MINI USB
Determining the Software Version
To determine the version of Cisco IOS software that is running on your Cisco router, log in to the router and
enter the show version EXEC command:
Router# show version
Cisco IOS Software, ME2600X Software (ME-UNIVERSALK9-M), Version 15.2(2)SA,
RELEASE SOFTWARE (fc5)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Downloading The Software Image File
To download the software image for your device, follow these steps:
Procedure
Step 1
If you are a registered customer, go to this URL and log in.
http://www.cisco.com/cisco/software/navigator.html?a=a&i=rpm
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
OL-28851-01
3
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
New Software Features
Step 2
Step 3
Step 4
Navigate to Switches > Service Provider Switches - Ethernet Access.
Navigate to your switch model.
Click IOS Software, then select me2600x-universalk9-mz.152-2.SA.fc5.
Step 5
To download the selected software image, click Download.
New Software Features
The following section provides information on the new software features:
Authentication, Authorization, and Accounting
Authentication, authorization, and accounting (AAA) is an architectural framework for configuring a set of
three independent security functions in a consistent manner. AAA provides a modular way of performing the
following services:
• Authentication—Provides the method of identifying users, including login and password dialog, challenge
and response, messaging support, and, depending on the security protocol you select, encryption.
• Authorization—Provides the method for remote access control, including one-time authorization or
authorization for each service, per-user account list and profile, user group support, and support of IP
and Telnet.
• Accounting—Provides the method for collecting and sending security server information used for billing,
auditing, and reporting, such as user identities, start and stop times.
For more information about AAA, see the Cisco ME 2600X Series Ethernet Access Switch Software
Configuration Guide, Release 15.2(02)SA.
Cisco Discovery Protocol
Cisco discovery protocol (CDP) is used to obtain protocol addresses of neighboring devices and discover the
platform of those devices. CDP can also be used to show information about the interfaces your device uses.
CDP is media- and protocol-independent, and runs on all Cisco-manufactured equipment including routers,
bridges, access servers, and switches.
For more information about CDP, see the Cisco ME 2600X Series Ethernet Access Switch Software
Configuration Guide, Release 15.2(02)SA.
Control Plane Policing
The control plane policing feature allows you to configure a quality of service (QoS) filter that manages the
traffic flow of control plane packets to protect the control plane of Cisco IOS devices against reconnaissance
and denial-of-service (DoS) attacks. In this way, the control plane (CP) can help maintain packet forwarding
and protocol states despite an attack or heavy traffic load on the device.
For more information about control plane policing, see the Cisco ME 2600X Series Ethernet Access Switch
Software Configuration Guide, Release 15.2(02)SA.
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
4
OL-28851-01
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
New Software Features
DHCP Snooping
DHCP snooping determines whether traffic sources are trusted or untrusted. An untrusted source may initiate
traffic attacks or other hostile actions. To prevent such attacks, DHCP snooping filters messages traffic from
untrusted sources.
To do this, DHCP snooping dynamically builds and maintains the DHCP snooping database using information
extracted from intercepted DHCP messages. The database contains an entry for each untrusted host with a
leased IP address if the host is associated with a VLAN that has DHCP snooping enabled. The database does
not contain entries for hosts connected through trusted interfaces.
For more information about DHCP snooping, see the Cisco ME 2600X Series Ethernet Access Switch Software
Configuration Guide, Release 15.2(02)SA.
Dynamic ARP Inspection
Dynamic ARP inspection (DAI )is a security feature that validates address resolution protocol (ARP) packets
in a network. DAI intercepts, logs, and discards ARP packets with invalid IP-to-MAC address bindings. This
capability protects the network from some man-in-the-middle attacks.
For more information about DAI, see the Cisco ME 2600X Series Ethernet Access Switch Software
Configuration Guide, Release 15.2(02)SA.
Ethernet Virtual Circuit
The ethernet virtual circuit (EVC) represents a logical relationship between Ethernet User–Network interfaces
(UNI) in a provider–based Ethernet service. The EVC represents the service offered and is carried through
the provider network. Each EVC is configured by its unique name across the provider network.
In the ME ethernet access system, the EVC represents a Carrier Ethernet service and is an entity that provides
an end–to–end connection between two or more endpoints.
The traffic for the service needs to pass through several switches in the provider network to connect sites
across the provider network. The instance of a specific EVC service on the physical interface of each network
device through which the EVC passes through is called an Ethernet Flow Point (EFP). An EFP is a logical
demarcation point of an EVC on an interface. An EFP can be associated with a bridge domain.
Cisco ME 2600X supports only point–to–multipoint EVCs.
For more information about EVC, see the Cisco ME 2600X Series Ethernet Access Switch Software
Configuration Guide, Release 15.2(02)SA.
Layer 2 Protocol over EVC
Cisco ME 2600X supports Layer 2 protocol tunneling only at the interface level. Configurations applied at
the interface level are applicable to all the EFPs configured on that interface. The following port actions are
supported in this release:
• Forward—Forwards the unmodified ingress bridge protocol data units (BPDUs) on the data path.
• Drop—Drops the ingress BPDUs on the interface.
• Peer—Punts BPDUs to the local instance of the protocol.
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
OL-28851-01
5
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
New Software Features
Valid protocols include Cisco discovery profile (CDP), dynamic trunking protocol (DTP), link aggregation
control protocol (LACP), port aggregation protocol (PAgP), spanning-tree protocol (STP), VLAN trunk
protocol (VTP) and 802.1x.
For more information about the layer 2 protocol over EVC feature, see the Cisco ME 2600X Series Ethernet
Access Switch Software Configuration Guide, Release 15.2(02)SA.
ICMP Unreachable Rate Limiting User Feedback
The ICMP unreachable rate limiting user feedback feature enables you to clear and display packets that have
been discarded because of an unreachable destination and to configure a threshold interval for triggering error
messages. When message logging is generated, it displays on your console.
For more information about the ICMP unreachable rate limiting user feedback feature, see the Cisco ME
2600X Series Ethernet Access Switch Software Configuration Guide, Release 15.2(02)SA.
IGMP Snooping
As networks increase in size, multicast routing becomes critically important as a means to determine which
segments require multicast traffic and which do not. IP multicasting allows IP traffic to be propagated from
one source to a number of destinations, or from many sources to many destinations. Rather than sending one
packet to each destination, one packet is sent to the multicast group identified by a single IP destination group
address. Internet Group Management Protocol (IGMP) snooping restricts flooding of multicast traffic by
sending multicast traffic only to the interfaces that are subscribed to a particular multicast group.
For more information about IGMP snooping, see the Cisco ME 2600X Series Ethernet Access Switch Software
Configuration Guide, Release 15.2(02)SA.
IP Source Guard for Service Instance
An IP source guard filters a source IP address on a layer 2 port and prevents malicious hosts from impersonating
a legitimate host. The feature uses dynamic DHCP snooping and static IP source binding to match IP addresses
to hosts on untrusted layer 2 access ports.
For more information about the IP source guard for service instance feature, see the Cisco ME 2600X Series
Ethernet Access Switch Software Configuration Guide, Release 15.2(02)SA.
Layer 2 Access Control Lists on EVCs
The ability to filter packets in a modular and scalable way is important for both network security and network
management. Access control lists (ACLs) provide the capability to filter packets at a fine granularity. In Metro
Ethernet networks, ACLs are directly applied on ethernet virtual circuits (EVCs).
Layer 2 access control lists on EVCs is a security feature that allows packet filtering based on MAC addresses.
For more information about the layer 2 access control lists on EVCs feature, see the Cisco ME 2600X Series
Ethernet Access Switch Software Configuration Guide, Release 15.2(02)SA.
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
6
OL-28851-01
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
New Software Features
Layer 3 Access Control Lists on EVCs
The ability to filter packets in a modular and scalable way is important for both network security and network
management. Access control lists (ACLs) provide the capability to filter packets at a fine granularity. In Metro
Ethernet networks, ACLs are directly applied on ethernet virtual circuits (EVCs).
Layer 3 access control lists on EVCs is a security feature that allows packet filtering based on IP addresses.
For more information about the layer 3 access control lists on EVCs feature, see the Cisco ME 2600X Series
Ethernet Access Switch Software Configuration Guide, Release 15.2(02)SA.
Link Aggregation Group
The link aggregation group (LAG) bundles individual Ethernet links into a single logical link that provides
the aggregate bandwidth of up to eight physical links. When an EFP is configured on a LAG, the EFP is
protected against link failures. When a link within a LAG fails, the traffic previously carried over the failed
link switches to the remaining links within that LAG.
The Link Aggregation Control Protocol (LACP) is a control protocol over LAG to check for any LAG
misconfigurations. LACP enables a single Layer 2 link to be formed automatically from two or more Ethernet
links. This protocol ensures that both ends of the Ethernet link are functional and agree to be members of the
aggregation group. LACP must be enabled at both ends of the link to be operational.
For more information about LAG, see the Cisco ME 2600X Series Ethernet Access Switch Software
Configuration Guide, Release 15.2(02)SA.
MAC Address Security
The media access control (MAC) address security for EVC Bridge Domain feature addresses port security
with EVCs by providing the capability to control and filter MAC address learning behavior at the granularity
of a per-EFP basis. For instance, when a violation requires a shutdown, only the customer assigned to a given
EFP is affected rather than all customers using the port.
For more information about the MAC address security feature, see the Cisco ME 2600X Series Ethernet Access
Switch Software Configuration Guide, Release 15.2(02)SA.
MAC Learning
A software MAC address table is maintained on the switch. This MAC address table contains the MAC
addresses learned on all the interfaces of the switch.
By default, MAC address learning is enabled only for point–to–multipoint bridge domains and can be disabled.
For more information about the MAC learning feature, see the Cisco ME 2600X Series Ethernet Access Switch
Software Configuration Guide, Release 15.2(02)SA.
Multicast VLAN Registration
Multicast VLAN registration (MVR) is designed for applications using wide-scale deployment of multicast
traffic across an Ethernet ring-based service-provider network (for example, the broadcast of multiple television
channels over a service provider network). MVR allows a subscriber on a port to subscribe and unsubscribe
to a multicast stream on the network-wide multicast bridge domain. It allows the single multicast bridge
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
OL-28851-01
7
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
New Software Features
domain to be shared in the network while subscribers remain in separate bridge domains. MVR provides the
ability to continuously send multicast streams in the multicast bridge domain and also to isolate the streams
from the subscriber bridge domains for bandwidth and security reasons.
For more information about MVR, see the Cisco ME 2600X Series Ethernet Access Switch Software
Configuration Guide, Release 15.2(02)SA.
OSPF
Open Shortest Path First (OSPF) is a routing protocol developed for Internet Protocol (IP) networks by the
interior gateway protocol (IGP) working group of the Internet Engineering Task Force (IETF).
Note
Current release of Cisco ME 2600X:
• Does not support OSPFv3 (for IPv6).
• Supports OSPF (for IPv4) only.
For more information about OSPF, see the IP Routing: OSPF Configuration Guide, Cisco IOS XE Release
3S.
Quality of Service
Quality of service (QoS) refers to the ability of a network to provide improved service to selected network
traffic over various underlying technologies including Ethernet and 802.1 networks, and MPLS networks. In
particular, QoS provides improved and more predictable network services by implementing the following
services:
• Supporting guaranteed bandwidth.
• Improving loss characteristics.
• Avoiding and managing network congestion.
• Shaping network traffic.
• Setting traffic priorities across the network.
For more information about QoS, see the Cisco ME 2600X Series Ethernet Access Switch Software
Configuration Guide, Release 15.2(02)SA.
Resilient Ethernet Protocol
The resilient ethernet protocol (REP) is a protocol that provides an alternative to the spanning tree protocol
(STP) to support Layer 2 resiliency, and fast switchover with Ethernet networks. REP provides a way to
control network loops, handle link failures, and improve convergence time.
REP performs the following tasks:
• Controls a group of ports connected in a segment.
• Ensures that the segment does not create any bridging loops.
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
8
OL-28851-01
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
Supported Feature Parameters
• Handles single link failure within the segment.
• Improves convergence time.
• Supports VLAN load balancing at the service instance level.
For more information about REP, see the Cisco ME 2600X Series Ethernet Access Switch Software
Configuration Guide, Release 15.2(02)SA.
Simple Network Management Protocol
Simple network management protocol (SNMP) is an application–layer communication protocol that allows
network devices to exchange management information among these systems and with other devices outside
the network. Through SNMP, network administrators can manage network performance, find and solve
network problems, and plan network growth. SNMP makes network monitoring more cost effective and allows
your network to be more reliable.
Cisco ME 2600X supports SNMP Version 2c (SNMPv2c).
For more information about SNMP, see the Cisco ME 2600X Series Ethernet Access Switch Software
Configuration Guide, Release 15.2(02)SA.
Storm Control over EVC
Storm control prevents traffic on a LAN from being disrupted by a broadcast, a multicast, or a unicast storm
on one of the physical interfaces. A LAN storm occurs when packets flood the LAN, creating excessive traffic,
and degrading network performance.
For more information about the storm control over EVC feature, see the Cisco ME 2600X Series Ethernet
Access Switch Software Configuration Guide, Release 15.2(02)SA.
Supported Feature Parameters
Table 2: Feature Parameters and Scale
Feature Parameters
Scale
MAC table
32,000
Multicast groups
2,000
Bridge domains per system
3,000
ACL entries
128 ACE, one ACE per MAC/ 255 ACE on a single
MAC
Queues
336
Queues per ASIC
336
Classifications
2,560/ 8
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
OL-28851-01
9
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
Supported Feature Parameters
Feature Parameters
Scale
Maximum ingress policers
2,560
Total EFPs per system
6,000
Maximum EFPs per bridge domain
48
Maximum etherchannel groups
48
Maximum Interfaces per etherchannel groups
8
Maximum class-maps
512
Maximum policy maps
1,024
Maximum queue counters (packet & byte)
65 queues with shaper
Maximum class-maps in policy-map
7+1 (class default)
Maximum number of match statements per class-map 2
Maximum number of EVC
4,000
Maximum number of REP segments
24
Maximum number of split horizon enabled bridge
domain
128
Maximum number of MVR bridge domain
20
Maximum number of policy-maps on LAG interfaces 160
IP ACL
256 ACE, one ACE per IP/ 511 ACE on a single IP
Maximum number of MAC security for services
256
Maximum number of enabled DAI for bridge domain 128
Input/output counters support for EFP
6,000
Maximum number of enabled DHCP snooping for
bridge domain
128
Maximum number of IP source guard clients
supported per bridge domain
128
Maximum number of IP source guard clients
supported per single bridge domain
511
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
10
OL-28851-01
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
Feature Support
Feature Parameters
Scale
Maximum number of bridge domain support for
multicast groups
128
Maximum number of EFPs support for multicast
storm control
128
Maximum number of EFPs support for broadcast
storm control
128
AAA maximum login with local user
199
AAA maximum login with radius user
199
AAA maximum login with none
199
AAA maximum login with TACACS+ user
199
AAA maximum local user
3,000
AAA maximum radius server per group
3,000
AAA maximum radius server group
3,000
AAA maximum TACACS+ server per group
3,000
AAA maximum TACACS+ server group
3,000
Feature Support
Cisco IOS software is packaged in feature sets that consist of software images that support specific platforms.
The feature sets available for a specific platform depend on which Cisco IOS software images are included
in a release. Each feature set contains a specific set of Cisco IOS features.
Caution
Cisco IOS images with strong encryption (including, but not limited to 168-bit [3DES] data encryption
feature sets) are subject to U.S. government export controls and have limited distribution. Strong encryption
images to be installed outside the United States are likely to require an export license. Customer orders
may be denied or subject to delay because of U.S. government regulations. When applicable, the purchaser
or user must obtain local import and use authorizations for all encryption strengths. Please contact your
sales representative or distributor for more information, or send an e-mail to [email protected].
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
OL-28851-01
11
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
Cisco Feature Navigator
Cisco Feature Navigator
The Cisco Feature Navigator is a web-based tool that enables you to determine which Cisco IOS software
images support a specific set of features and which features are supported in a specific Cisco IOS image. You
can search by feature or by feature set (software image). Under the release section, you can compare Cisco
IOS software releases side-by-side to display both the features unique to each software release and the features
that the releases have in common.
To access the Cisco Feature Navigator, you must have an account on Cisco.com. If you have forgotten or lost
your account information, send a blank e-mail to [email protected]. An automatic check verifies that
your e-mail address is registered with Cisco.com. If the check is successful, account details with a new random
password is e-mailed to you. Qualified users can establish an account on Cisco.com by following the directions
found at this URL:
https://tools.cisco.com/RPF/register/register.do
The Cisco Feature Navigator is updated regularly when major Cisco IOS software releases and technology
releases occur. For the most current information, go to the Cisco Feature Navigator home page at the following
URL:
http://www.cisco.com/go/fn
For frequently asked questions about the Cisco Feature Navigator, see the FAQs at the following URL:
http://www.cisco.com/support/FeatureNav/FNFAQ.html
Determining Which Software Images Support a Specific Feature
To identify the software images (feature sets) in a specific Cisco IOS Release, for example, 15.2(02)SA that
support a specific feature:
Procedure
Step 1
Step 2
Go to the Cisco Feature Navigator home page. Enter your Cisco.com login.
Click Search by Feature.
Step 3
Step 4
To find a feature, use either Filter by full or partial feature name or search for available features in
alphabetical order. Either a list of features that match the search criteria or a list of features that begin with
the number or letter selected from the ordered list is displayed in the text box.
Select a feature from the Available Features pane, and click Add to add a feature to the Selected Features
pane.
Note
To learn more about a feature in the list, click Show
Descriptions.
Repeat this step to add additional features. A maximum of 20 features can be chosen for a single search.
Step 5
Click Continue when you are finished selecting features.
Step 6
From the Major Release drop-down menu, choose 15.2SA.
Step 7
Step 8
From the Release drop-down menu, choose the appropriate maintenance release.
From the Platform Family drop-down menu, select the appropriate hardware platform. The Search Results
table lists all the software images (feature sets) that support the selected feature.
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
12
OL-28851-01
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
Determining Which Features Are Supported in a Specific Software Image
Determining Which Features Are Supported in a Specific Software Image
To determine the features supported in a specific software image (feature set) in Cisco IOS Release, for
example, 15.2(02)SA:
Procedure
Step 1
Step 2
Go to the Cisco Feature Navigator home page. Enter your Cisco.com login.
Click Compare Images.
Step 3
From the Software drop-down menu in the Select First Image Parameters pane, choose IOS.
Step 4
From the Major Release drop-down menu, choose 15.2SA.
Step 5
From the Release Number drop-down menu, choose the appropriate maintenance release.
From the Platform Family drop-down menu, choose the appropriate hardware platform.
From the Feature Set drop-down menu, choose the appropriate feature set. The Search Results table lists all
the features that are supported by the selected feature set (software image).
Step 6
Step 7
Limitations and Restrictions
For limitations and restrictions applicable to a particular feature supported on Cisco ME 2600X, see the Cisco
ME 2600X Series Ethernet Access Switch Software Configuration Guide, Release 15.2(02)SA at http://cisco.com/
en/US/products/ps12951/tsd_products_support_series_home.html
Using the Bug Toolkit
This chapter describes how you can use the bug toolkit to search for bugs in a Cisco IOS release.
Searching Bugs
This section explains how to use the Bug ToolKit to search for a specific bug.
Procedure
Step 1
Go to https://tools.cisco.com/Support/BugToolKit.
You are prompted to log into Cisco.com. After successful login, the Bug Toolkit page opens.
Step 2
Click Launch Bug Toolkit.
To search for bugs in a specific release, enter the following search criteria:
Step 3
To search for a specific bug, enter the bug ID in the Search for Bug ID field and click Go in the Search Bugs
tab.
To search for bugs in a specific release, enter the following search criteria:
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
OL-28851-01
13
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
Saving Bugs
• Select Product Category—Select Switches.
• Select Products—Select the required product from the list. For example, to view bugs for Cisco ME
2600X Series Ethernet Access Switch, choose Cisco ME 2600X Series Ethernet Access Switch from
the list.
• Software Version—Choose the required Cisco IOS version from the drop-down lists. For example, to
view the list of outstanding and resolved bugs in Cisco IOS Release 15.2(02)SA, choose 15.2 from the
first drop-down list, 02 from the second drop-down list, and SA from the third drop-down list.
• Search for Keyword(s)—Separate search phrases with boolean expressions (AND, NOT, OR) to search
within the bug title and details.
• Advanced Options—You can either perform a search using the default search criteria or define custom
criteria for an advanced search. To customize the advanced search, select Use custom settings for
severity, status, and others and provide the following information:
◦Severity—Select the severity level.
◦Status—Select Open, Fixed, or Terminated.
Select Open to view all the open bugs. To filter the open bugs, clear the Open check box and select
the appropriate sub-options that appear below the Open check box. The sub-options are New, Held,
More, Open, Waiting, Assigned, Forwarded, Postponed, Submitted, and Information Required.
For example, if you want to view only new bugs in Cisco IOS Release 15.2(02)SA, select New.
Select Fixed to view fixed bugs. To filter fixed bugs, clear the Fixed check box and select the
appropriate sub-options that appear below the Fixed check box. The sub-options are Resolved or
Verified.
Select Terminated to view terminated bugs. To filter terminated bugs, clear the Terminated check
box and select the appropriate sub-options that appear below the terminated check box. The
sub-options are Closed, Junked, and Unreproducible. Select multiple options as required.
◦Advanced—Select the Show only bugs containing bug details check box to view only those bugs
that contain detailed information, such as symptoms and workarounds.
◦Modified Date—Select this option if you want to filter bugs based on the date on which the bugs
were last modified.
◦Results Displayed Per Page—Select the appropriate option from the list to restrict the number of
results that appear per page.
Step 4
Click Search. The Bug Toolkit displays the list of bugs based on the specified search criteria.
Saving Bugs
Procedure
Step 1
Perform a search.
Repeat Step 1 through Step 3 in the "Searching Bugs" section.
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
14
OL-28851-01
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
Saving Search
Step 2
Select the check boxes next to the bug you want to save in the Search Results page and click Save Checked.
The Save Bug Settings area appears under the Search Bugs tab.
Step 3
Specify group settings in the Place in Group field.
• Existing Group—Select an existing group.
• Create New Group—Enter a group name to create a new group.
Existing groups have their group notification options already set. If you select an existing group, go to Step
5.
Step 4
Specify the following email update (group notification) options.
• No emailed updates—Select if you do not want to receive email updates.
• Yes, email updates to—Enter your email address.
◦On a schedule—Specify the frequency of email delivery.
Step 5
Click Save Bug.
The Bug ToolKit saves the selected bugs in the specified group.
Saving Search
This section explains how to use Bug ToolKit to save your search after searching for the bugs in a specific
release.
Procedure
Step 1
Perform a search.
Repeat Step 1 through Step 3 in the "Search Bugs" section.
Step 2
Click Save Search in the Search Results page to save your search with the specified criteria.
The Save Search Settings area appears under the My Notifications tab.
Step 3
Enter a name for your search in the Search Name field.
Step 4
Specify group settings in the Place in Group field.
• Existing Group—Select an existing group.
• Create New Group—Enter a group name to create a new group.
Existing groups have their group notification options already set. If you select an existing group, go to Step
6.
Step 5
Specify the following email update (group notification) options.
• No emailed updates—Select if you do not want to receive email updates.
• Yes, email updates to—Enter your email address.
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
OL-28851-01
15
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
Retrieving Saved Search or Bugs
◦On a schedule—Specify the frequency of email delivery.
Step 6
Click Save Search.
The Bug ToolKit saves your search in the specified group.
Retrieving Saved Search or Bugs
This section explains how to use Bug ToolKit to retrieve a saved search or bugs.
Procedure
Step 1
Go to https://tools.cisco.com/Support/BugToolKit and click Launch Bug Toolkit.
You are prompted to log into Cisco.com.
Step 2
Click My Notifications tab.
My Notifications tab displays the Group Name, Summary, and Actions.
Step 3
Step 4
Click the group in the Group Name column. The group contains saved search and bugs.
Retrieve saved search or bugs.
• Click the saved search name to display the Search Results page.
• Click the saved bug to display details or hover your mouse pointer over the Info link.
The My Notifications tab also provides option to delete bug, delete search, delete group, edit group notifications
(in the Actions column), move selected saved search or bugs to different group, and to export saved bugs in
all the groups to a spreadsheet.
Exporting to Spreadsheet
The Bug ToolKit provides the following options to export bugs to a spreadsheet:
• Click Export All to Spreadsheet link in the Search Results page under the Search Bugs tab. Specify
file name and folder name to save the spreadsheet. All the bugs retrieved by the search is exported.
• Click Export All to Spreadsheet link in the My Notifications tab. Specify file name and folder name
to save the spreadsheet. All the saved bugs in all the groups is exported.
If you are unable to export the spreadsheet, log into the Technical Support Website at http://www.cisco.com/
cisco/web/support/index.html for more information or call Cisco TAC (1-800-553-2447).
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
16
OL-28851-01
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
Caveat List for Cisco IOS Release 15.2(02)SA
Caveat List for Cisco IOS Release 15.2(02)SA
This chapter describes open severity 1 and 2 caveats and select severity 3 caveats:
The "Open Caveats" sections list open caveats that apply to the current release and may apply to previous
releases. A caveat that is open for a prior release and is still unresolved applies to all future releases until it
is resolved.
The bug IDs are sorted alphanumerically.
Note
The Caveats section includes the bug ID and a short description of the bug. For details on the symptoms,
conditions, and workaround for a specific caveat you must use the Bug ToolKit. For more details, see
Using the Bug Toolkit.
Open Caveats—Cisco IOS Release 15.2(02)SA
Bug ID
Description
CSCub65391
When VLAN Load balancing configuration is applied
and removed, provider edge (PE) port remains
alternate (ALT) with neighbor port flag set as
preferred. The port with preferred flag is expected to
go to ALT state, however the access point (AP)
election leads to PE port being elected as the blocked
port.
CSCub76755
When either link aggregation control protocol (LACP)
is fast-switchover configured or when port and system
priority is changed, the convergence time is high
(approx 2 secs).
CSCub77186
When convergence time with copper optics varies
between 400 ms to 700 ms, the switching time is high
on link flaps for copper interface with fast hellos
enabled.
CSCub77294
When resilient ethernet protocol (REP) configuration
is removed from primary edge port, REP edge
no-neighbor segment will see more than one alternate
port.
CSCub96737
When write memory operation with scaled ethernet
flow points reaches 3000 EFPs or more, CPU
utilization is high.
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
OL-28851-01
17
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
Open Caveats—Cisco IOS Release 15.2(02)SA
Bug ID
Description
CSCuc00376
Data traffic on ethernet service instance flow point
instance is not updated on the access control list
(ACL) counters. As a result, the output of the show
ethernet service instance detail does not show
updated ethernet virtual circuit (EVC) ACL counters.
CSCuc29856
When static IP source address is removed and then
DHCP client IP address is renewed, the IP source
guard table shows a stale entry.
CSCuc51564
When you enable IP source guard over an interface
which has DHCP binding for scaled number of clients,
DHCP snooping binding table and IP source guard
table show duplicate entries.
CSCuc74632
When port channel is untrusted and physical interface
to be added is trusted, the physical interface is allowed
to be added to the port channel.
CSCuc99941
When you reload a switch whose port speed is set to
10M and the bundle has 8 members, in certain
instances, one of the link aggregation member goes
to a passive state.
CSCud04134
When scaled DHCP bindings are present on the
system, reload on the switch may cause the address
resolution protocol (ARP) rate limiting to show false
error disable status.
CSCud11745
The IP application control engine (ACE) is limited
to 512 ACE. When you configure more than 512 IP
ACE, the node goes to CPUHOG state.
CSCud14111
When you manually delete bridge-domain (BD)/BDI
and add them again without issuing the no ip dhcp
snooping bridge-domain command, binding does
not happen.
CSCud59128
When you configure IP ACL with Not-equal to
<value>, Greater than <value>, Less than <value>,
Range <lower bound, higher bound>, each filter is
considered as 1 range value per ethernet flow point
(EFP). Maximum supported ACL configuration range
check is 60.
CSCud79145
When you enable MAC security and change the link
status layer (LSL) timer below default value, MAC
security on user-network interface (UNI) port causes
high CPU utilization and LSL messages are lost.
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
18
OL-28851-01
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
Open Caveats—Cisco IOS Release 15.2(02)SA
Bug ID
CSCud79259
Description
• Enabling MAC security on resilient ethernet
protocol (REP) ports on the same interface is
not supported and causes high switching time
(around 30 seconds).
• Enabling MAC security and REP is not
supported, when on the same interface:
1 EFP is configured under the bridge-domain
and
2 MAC security (limit) is enabled on the
bridge-domain
CSCud97739
IP source static entry with DHCP database enabled
is not supported and after reload causes a loss of
binding information.
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
OL-28851-01
19
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
Resolved Caveats—Cisco IOS Release 15.2(02)SA
Resolved Caveats—Cisco IOS Release 15.2(02)SA
Bug ID
Description
CSCtg39957
The Resource Reservation Protocol (RSVP) feature
in Cisco IOS Software and Cisco IOS XE Software
contains a DoS vulnerability.
Cisco has released free software updates that address
this vulnerability. There are no workarounds available
to mitigate this vulnerability.
This advisory is available at the following link:
http://tools.cisco.com/security/center/content/
CiscoSecurityAdvisory/cisco-sa-20130327-rsvp
Note
The March 27, 2013, Cisco IOS Software
Security Advisory bundled publication
includes seven Cisco Security Advisories.
All advisories address vulnerabilities in Cisco
IOS Software. Each Cisco IOS Software
Security Advisory lists the Cisco IOS
Software releases that correct the
vulnerability or vulnerabilities detailed in the
advisory as well as the Cisco IOS Software
releases that correct all Cisco IOS Software
vulnerabilities in the March 2013 bundled
publication.
Individual publication links are in “Cisco
Event Response: Semiannual Cisco IOS
Software Security Advisory Bundled
Publication” at the following link:
http://www.cisco.com/web/about/security/
intelligence/Cisco_ERP_mar13.html
Related Documentation
User documentation in HTML format includes the latest documentation updates and might be more current
than the complete book PDF available on Cisco.com.
These documents provide information about the switch and are available from this Cisco.com site:
http://cisco.com/en/US/products/ps12951/tsd_products_support_series_home.html
• Regulatory Compliance and Safety Information for the Cisco ME 2600X Series Ethernet Access Switch
• Cisco ME 2600X Series Ethernet Access Switch Hardware Installation Guide
• Cisco ME 2600X Series Ethernet Access Switch Software Configuration Guide, Release 15.2(02)SA
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
20
OL-28851-01
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
Obtaining Documentation and Submitting a Service Request
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional information,
see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco
technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What's New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed
and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free
service and Cisco currently supports RSS version 2.0.
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
OL-28851-01
21
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
Obtaining Documentation and Submitting a Service Request
Release Notes for Cisco ME 2600X Series Ethernet Access Switch, Cisco IOS Release 15.2(02)SA
22
OL-28851-01