11-09-2010 12:49 PM - edited 03-01-2019 09:44 AM
When I login to the fabric interconnects via command line, I can "connect nxos" and "show cdp neighbors". That does a great job of showing me the north-bound Ethernet switches and any N1K connections. I would like to do the same for the Fiber Channel connections ... to see to which MDS my UCS is uplinked.
Can I do this also within the NXOS facility?
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11-09-2010 04:49 PM
Yes, that's an excellent method to determine the actual switch it is connected to. The flogi database on the switch will show you the actual port. But, you need to know the switch to get to that part.
fabric mgmt addr: 10.x.x.x <- NPIV switch (Northbound MDS)
fabric pwwn: 20:15:00:0d:ec:cd:99:80 <- NPIV interface pwwn
11-09-2010 02:22 PM
you can try "sh fcs ie" and "show toplogy"
11-09-2010 02:50 PM
In the release code, the FC module is in NPV mode. It doesn't support FC services, show topo, fcs ie will work only in switch mode. In NPV mode, it's like a remote line card, very little on-board functionality
In order to determine neighbors via CLI:
1) On the FI side from within NX-OX, display the Pwwn of the uplink port on the FC Module
FI-A(nxos)# show interface fc 2/1 | grep WWN
Port WWN is 20:41:00:0d:ec:d3:5d:c0
On the MDS side run "show flogi database vsan 100" <-- Whatever VSAN the connected port is in.
MDS-9506-1(config-if)# show flogi database vsan 100
--------------------------------------------------------------------------------
INTERFACE VSAN FCID PORT NAME NODE NAME
--------------------------------------------------------------------------------
fc2/13 100 0x640101 50:0a:09:81:86:78:3b:98 50:0a:09:80:86:78:3b:98
fc4/11 100 0x640102 20:41:00:0d:ec:d3:5d:c0 20:64:00:0d:ec:d3:5d:c1
fc4/12 100 0x640103 20:42:00:0d:ec:d3:5d:c0 20:64:00:0d:ec:d3:5d:c1
Total number of flogi = 3.
This show the FI fc 2/1 is connected to the MDS at fc 4/11
2) FMS will also display the connectivity
11-09-2010 04:30 PM
Good info ... one of the main goals is to be able to verify from the UCS, what the ID of the MDS switch is to which I am connected. This is assuming I don't know which MDS switch.
The NPV path took me a new direction. Can you confirm if the following example is indicating my upstream SAN switch ... or some other management device on the fabric?
FI-A(nxos)# show npv internal info external-interface all
External Interface Info:
========================
Interface Information:
ifindex: fc2/1, Port VSAN: 101, Internal FLOGI VSAN: 101, fcid: 0x010016
Internal FLOGI Done: True, In Progress: False
FSM current state: NPIVP_EXT_IF_ST_UP
fabric mgmt addr: 10.x.x.x
fabric pwwn: 20:15:00:0d:ec:cd:99:80, fabric nwwn: 20:65:00:0d:ec:cd:99:81
my pwwn: 20:41:00:0d:ec:df:07:40, my nwwn: 20:65:00:0d:ec:df:07:41
fcf_mac: 000d:ecdf:0774
11-09-2010 04:49 PM
Yes, that's an excellent method to determine the actual switch it is connected to. The flogi database on the switch will show you the actual port. But, you need to know the switch to get to that part.
fabric mgmt addr: 10.x.x.x <- NPIV switch (Northbound MDS)
fabric pwwn: 20:15:00:0d:ec:cd:99:80 <- NPIV interface pwwn
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