N9K B2B vPC Enable Jumbo MTU
The test topology is a full mesh. On the same link, if one end is configured with jumbo while the other end is not, the link is still up. No...
N9K Change the vPC Role
Currently the switch 1 takes the vPC secondary role with priority 15 while switch 2 takes the vPC primary role with priority 10. I switch their priority but their role...
N9K – Migrate B2B vPC
1. Initial State The dotted line are links not patched. A pair of routers connect all the SS and SD. The VLAN gateway is currently at SS003/004. B2B vPC is...
N5K with N2K FEX vPC
1. Attach FEX 1.1 Configure FEX on both N5Ks Since vPC is not enabled yet, N5K-1 configured with FEX will attach the FEX and N5K-2 won’t. feature fex interface Ethernet1/43...
N9K vPC Track
The HSRP is configured on vPC. The active HSRP router is SD001. If the L3 uplink is down, the traffic towards will be blackholed. Configure Track on vPC peers. Each...
Cisco N9k – Double-Sided vPC
1. Test Environment Double-sided vPC is also called Back-to-Back vPC. Test devices are: 2. Config 3. Show Output 4. Troubleshooting Another topology is used. 4.1 Normal Status SS002(config)# do show...
N9K – Migration from one vPC Pair to Another Pair with HSRP
Initial config: 1. Initial Config 2. Initial Status 2.1 STP Status Since there are 2 independent L2 links between 2 pairs of vPC devices, STP blocks one port on SD004....
Cisco N9k vPC Config
1. Topology and Device Info 2. vPC Config 2.1 Enable vPC Feature feature vpcN9K-01# show feature | in vpcvpc 1 enabled 2.2 Configure vPC Peer-Keepalive Link The management ports and...