Discovering Nexus 2248 in NMS

[puneetgu]

We are implementing a DC wherein we have Nexus 2248 (Edge SWitch) connected to Nexus 5020(Aggregation Switch). The customer has CA Spectrum as NMS for monitoring of network devices. We have configured the snmp string on Nexus 5020 and also under the Fex on the 5020. We are able to discover 5020 switches. But the 2248 switches are not showing up in topology. Is it possible to see the FEX in the topology or not.

[Dan Frey]

The ports of the 2248 will show up in the IFMIB when you query the 5K via snmp.

#ports of the 5K

IF-MIB::ifDescr.436207616 = STRING: Ethernet1/1

IF-MIB::ifDescr.436211712 = STRING: Ethernet1/2

IF-MIB::ifDescr.436215808 = STRING: Ethernet1/3

IF-MIB::ifDescr.436219904 = STRING: Ethernet1/4

.....truncate

#ports on 2248

IF-MIB::ifDescr.526581760 = STRING: Ethernet100/1/1

IF-MIB::ifDescr.526581824 = STRING: Ethernet100/1/2

IF-MIB::ifDescr.526581888 = STRING: Ethernet100/1/3

IF-MIB::ifDescr.526581952 = STRING: Ethernet100/1/4

IF-MIB::ifDescr.526582016 = STRING: Ethernet100/1/5

....truncate

#ports on another 2248

IF-MIB::ifDescr.526647296 = STRING: Ethernet101/1/1

IF-MIB::ifDescr.526647360 = STRING: Ethernet101/1/2

IF-MIB::ifDescr.526647424 = STRING: Ethernet101/1/3

IF-MIB::ifDescr.526647488 = STRING: Ethernet101/1/4

IF-MIB::ifDescr.526647552 = STRING: Ethernet101/1/5

IF-MIB::ifDescr.526647616 = STRING: Ethernet101/1/6

.....

CLI of interfaces on 5K connecting to 2248

interface Ethernet1/8

  fex associate 100

  switchport mode fex-fabric

interface Ethernet1/9

  fex associate 100

  switchport mode fex-fabric

Does this help?

Dan

[dkirks]

In SPECTRUM, you can see the FEX interfaces by looking in "Entity View" under the "Component Detail" window.  SPECTRUM will not model the FEX's in the topology view.