Question
Answer
Finally they removed the Cat65 VSS Picture to explain FEX
an N5k
No kidding right!?!?!?
Well...depends Dude...what features are you
using, are you looking at a M series or F series
Can you swap the 5500 for the 7000 without issues?
card set, etc...
For the most part yes, but there are features that
Can you swap the 5500 for the 7000 without issues?
will exists only on N5K.
Is there a manager app that provides a single point of
You have all of your typical managment tools
management for multiple 5Ks?
including DCNM.
Whats the status of IPv6 routing on the L3 cards in the
Hopefully soon Dude. We are working on this
Nexus 5k?
now
Is the number of FEX limited by hardware or software?
F cards. 2 7010's with F2's running to 2232TM's via fiber.
Servers connect via copper.
Is it a true statement that only the 7000 supports L3
routing?
It is a combination of the two. Each FEX adds
CPU load. Here are the current limits for Nexus
5000.
http://www.cisco.com/en/US/docs/switches/dat
acenter/nexus5000/sw/configuration_limits/limit
s_521/nexus_5000_config_limits_521.html
SHould be OK. I really hate to gave a solid
endorsement without knowing more about the
network. With what you have said; yes
No. The N5K supports L3 with an expansion
module.
can you have a host in active/active teaming through two
2000 fex connected to two 7000 using vPC? I saw a
diagram that only showed the active/standby setup, but We dont support that today, but we are going to
showed both for the 5000 switch.
support in a future NX-OS release
Also, remember, given that Nexus 7000 already
has full redundancy including dual-supervisors,
can you have a host in active/active teaming through two power supply redundancy, fabric redundcany and
2000 fex connected to two 7000 using vPC? I saw a
HA, this feature is not as critical on Nexus 7000.
diagram that only showed the active/standby setup, but Lot of customers connect FEX ports to multiple
showed both for the 5000 switch.
LC for redundancy
on N7k, can I have FEX ports allocated to multiple VDCs?
16 FEX in L3 mode
on N7k, can I have FEX ports allocated to multiple VDCs?
does the VM FEX requier the 1000V?
With the momentum of 10GBase-T, why would one
choose to go fiber to the server?
No, all FEX ports must belong to same VDC
No, VM-FEX does not require Nexus 1000V
Fiber will always have a longer reach to the
server and is EMI does not affect it.
http://www.cisco.com/en/US/docs/switches/dat
with L3 module installed on 5K, how many FEX supported acenter/nexus5000/sw/configuration_limits/limit
on 5K? thanks
s_521/nexus_5000_config_limits_521.html
with L3 module installed on 5K, how many FEX supported
on 5K? thanks
We can support 16 FEX in L3 mode
Praneetha - was that answer to my question?
Sorry, wrong question being answer.
Praneetha - was that answer to my question?
All FEX host ports must belong to same VDC
is there still a limit on the # of FEXs able to be attached if
the enterprise routing license is installed on the 5ks?
Will VM-FEX/Adapter-FEX only be available with the Cisco
CNAs?
So only the N2K-C2232PP-10GE supports FCoE at the
moment right?
For Adapter FEX we are working with 3rd party
companies as well.
At this time only FCoE is supported on fiber or
SFP+ cables.
can you have a host in active/active teaming through two
2000 fex connected to two 5000 using vPC?
Yes.
You can also have eVPC where the FEX is
can you have a host in active/active teaming through two connected to two different N5K and the host is
2000 fex connected to two 5000 using vPC?
active-active vpc
Yes. B22 line of FEX also support FCoE. I was
Well I forgot the B22HP. That one should support FCoE. ;) orginally thinking of rack mount Nexus 2000
n5k suport ipv6?
Yes, with the GoldCoast release onward
n5k suport ipv6?
That would be 5.2 release
Will we be covering some of the different 2k to 5K uplink
options for providing HA and not single point of failure?
will the nexus 2000s ever support local switching between
ports on the same fex?
will the nexus 2000s ever support local switching between
ports on the same fex?
will the nexus 2000s ever support local switching between
ports on the same fex?
We have a vendor recommending that since we are
planning on using several vDC's on our 7k's, then they
recommend to use seperate 5K's and 2k's per vDC instead
of carving up a set of common 5K's and 2K's with vlans. Is
this a best practice/normal tip?
Yes. We will have connection diagrams
No plans at this time.
We want to keep N2K simple to provide a single
pane management.
But we are constantly looking at customer
requirements for the future products
Best to bring network design questions to the
Cisco Account teams so that the correct
resources can be engaged.
The FETs are used only between Nexus 2000 and
Will FETs ever be orderable separately w/o being part of a parent switch. So they are currently only sold
N2K purchase?
with Nexus 2000
Will FETs ever be orderable separately w/o being part of a yes, it is orderable, however its an hidden SKU N2K purchase?
FET-10G=
T- copper, P-is fiber uplink to parent switch. E
What does TP-E stand for?
with extended buffer.
We cannot comment on product that is not
No 40G modules for the 5k on the horizon?
shipping
10GT over copper... what media is support again?
CAT-6, 6A, 7. Best to reference the datasheet for
the latest update.
Is there oversubscription in the 2232TM-E?
Depends on how you design your connections.
What does M of TM-E stand for?
M" for module but it is not Field Upgradeable...if
you look closely there are screws on that part of
the Network interface ports"
is FCoE supported on 2248T-E?
"M" for module but it is not Field Upgradeable......
will there be SFP+ 10GBase-T transceivers for a 2232PP?
Talking about the B22, what is the technical reason why
I´m not able to enable turn on the location-led?
Module can be replaced?
does this blade fex basically replace the Nexus 4k?
That is a 1G FEX. You have to have 10G speeds
to support FCoE. FC native is 1,2,4, 8G.
Currently the 10G PHY uses more power than the
power budget on a SFP+ form factor. So no such
device exisits. As the power usage comes down,
it may be possible in the future.
The location LED ir controlled by the chassis
managment board. There is no way to send
commands between the Nexus and the chassis
managmenet board of the chassis
Nope.
What is the backplane throughput of the 2232TM-E? Do
the ports share capacity to the backplane in 8-port
groups?
What is the backplane throughput of the 2232TM-E? Do
the ports share capacity to the backplane in 8-port
groups?
Depends on how the uplinks are connected.
Static pinning or port channel. typically
customers use port channel and thus any host
facing port can go up the network facing ports.
If all network facing ports are connected, then
you can think of it as a 80G port channel link for
the FEX.
Does the 5K support ISSU? How would the OS upgrade
affect the 2K traffic flows? It is really hitless?
N5K supports ISSU. It is really hitless.
does the B22 work in an IBM chassis?
You are not answering my question. Are the 2232TM-E
rated for full line speed on all ports, or are they
oversubscribed?
You are not answering my question. Are the 2232TM-E
rated for full line speed on all ports, or are they
oversubscribed?
You are not answering my question. Are the 2232TM-E
rated for full line speed on all ports, or are they
oversubscribed?
At this time, there is not a B22 for the IBM
chassis. Please work with your account team.
it's 4:! oversubscribed
4:1... 32 porst down 1/10GBASE-T + 8 SFP+ up
in 1Gig mode, it's linerate
only if STP is not active
you lose ISSU on the N5K if there are ports running regular
spanning tree (i.e. none edge sTP ports)
can you dual connect a FEX to multiple 5000's for
redundancy? Also, is there a 40Gb/s option available for
that interconnect?
can you dual connect a FEX to multiple 5000's for
redundancy? Also, is there a 40Gb/s option available for
that interconnect?
thats an advantage of use N7k for parent switch if you
have an STP environment
No, I'm asking the opposite..can you connect a single FEX
to multiple 5000's?
No, I'm asking the opposite..can you connect a single FEX
to multiple 5000's?
great thanks.
What encapsulation does the FEX use?
i may have missed it, but what is the difference between
pinning and port channel..thx
i may have missed it, but what is the difference between
pinning and port channel..thx
lol it was just explained..thx!
Are there any advantages to using Pinning rather than
Portchannel?
vlan assignment in port profiles as well?
we will have Nexus 5548UP, and Nexus 2224TP, and we
also have HP C7000 with HP Flex10 balde, where should I
plug HP Flex-10 into ? in Nexus 5548 ?
will changes to port-profiles be replecated to already
assinged interfaces?
can he VNTags be view
Is there a VNTag table
Another thing, our core will be 6509E with 2T engine, and
downstream Nexus 5548, where HP Flex10 better be
plugged in
is VM FEX and extra license?
yes, there are specific guidelines to get hitless
ISSU with regard to STP root
Yes you can connect multiple FEX to N5K. There
are plans for QSFP+ option for interconnect.
Yes
yes, a single FEX can be connected to two N5K.
There will be some topologies shown later on
its a VNTAG - Jeffrey will talk about it
with pinning you pin specific host ports to
netwrok interfaces
with port channel, hashing to NIF is based on
flows
it's consistency, you know the behavior and how
much bandwidth each host will have access to most customers use PortChannel, simpler
Yes
yes - best is to connect switches to N5K
Yes
There are 802.1BR tables that is viewable
5548 is best since it's your acces/aggreg, but
both work
there is a license but zero cost
Does VMFex count against your total Fex count limit?
no there is another vmFEX limit, independant
so FULL active / active from the server is supported (not
just ODD / EVEN vlans across differnt links)
yes, with vPC, it's already active/active. With
fabric path, it's up to 16 path active/active
Can 2 k support fabric path?
with vPC+, the virtual switch (parent switch +
N2K) can be seen as one switch in the fabric path
cloud
Fabric Path is on the parent switch...it is not run
at the N2K
dummy question here, we have brocade 5100 Switch for
our san storage, can nexus 5548 replace it ?
Yes. With our 5548UP it can support FC as well
as FCOE/CE.
Can 2 k support fabric path?
What if I have multiple servers which needs to be part of
two or more VDCs and I have only one FEX device on the
Rack. What is the best way to integrate with Nexus 7 K.
Please reach out to me [email protected]", I
This is reference to my earlier question can work with you"
spaning fex HIF across multiple VDC
for the N5K - between N2K & N5K, you can use
16 paths for the whole 5K or between the 5k & 2k
vPC.
any particular SFP+ need to be used for connect to HP SAN
6500 with 8GB plug
dummy question: If we have Nexus 2000 VM-FEX, do we
still need Nexus 1000v on Hypervisor layer?
no you don't
could we share the comparison between Nexus 1000v and
Nexus 2000 VMFEX?
it's actually n1000v & VMFEX
can copy the QA session for future reference.. I am not
able to copy..
will 2k support fc?