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14 August 2014 | Written by Nicolas Michel | Published in Data Center
Everything was fine on the switch except that no adjacency could be performed with its neighbors.
I gave a quick look at the licensing and all was all right :
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Nexus-5548# sh license usage Feature Ins Lic Status Expiry Date Comments Count -------------------------------------------------------------------------------- FCOE_NPV_PKG No - Unused - FM_SERVER_PKG No - Unused - ENTERPRISE_PKG No - Unused - FC_FEATURES_PKG No - Unused - VMFEX_FEATURE_PKG No - Unused - ENHANCED_LAYER2_PKG No - Unused - LAN_BASE_SERVICES_PKG Yes - In use Never - LAN_ENTERPRISE_SERVICES_PKG Yes - Unused Never - -------------------------------------------------------------------------------- |
Then I checked that some L3 features are Up and running (If you have LAN_ENTERPRISE_SERVICES licensing model activated, it will be displayed “In use” right after you activate an advanced L3 feature like BGP – for more information regarding NX-OS licensing, please refer to Cisco NX-OS Licensing:
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Nexus-5548# sh feature | inc eigrp|vlan eigrp 1 enabled eigrp 2 enabled (not-running) eigrp 3 enabled (not-running) eigrp 4 enabled (not-running) interface-vlan 1 enabled private-vlan 1 disabled |
So everything is fine but my port is still in a down/down state:
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Nexus-5548# sh int eth1/2 | inc "is down" Ethernet1/2 is down (L3 not ready) |
Then I gave a look at the inventory to check the L3 daughter card and was quite surprised about the output
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Nexus-5548# sh invent | inc L3 NAME: "Module 3", DESCR: "O2 Non L3 Daughter Card" PID: N55-DL2 , VID: XX , SN: XXXXXXXXXX |
It is very easy to misread this output (especially at 2am) because your eyes can focus on the “L3 Daughter Card” words and in fact you should read : “O2 NON L3 Daughter Card”
The N55-DL2 is the regular L2 card that is bundled with a regular Nexus 5548.
The N55-D160L3 or V2 is needed to allow the L3 ports to go in an up/up state 🙂
Pretty basic stuff but still interesting to remind.
Nicolas
PS: This command is very interesting to check if L3 is globally activated on your N5k
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Nexus-5548# show system internal btcm info system status : L3 Not Ready |
One thought on “Cisco Nexus L3 daughter card”
Me (I work for a major Cisco partner in Brazil) and the client’s engineer just mis-read that non L3 daughter card. That’s so frustating. At least we are missing both licensing and L3 daughter card. What a bummer!!