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...
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 9364C GX – IPSLA & HSRP
Background: The idea scenario is HSRP configured under SVI interface which runs over the vPC port-channel. 1. IP SLA 1.1 Configuration feature sla sender ip sla 1 icmp-echo 172.16.0.2 source-interface...
Cisco N9K 9364C GX – NXOS & EPLD Upgrade
This to upgrade N9K 9364C GX from 10.4(3)F to 10.4(4)M. 1. Copy & Verify Image Nexus-9364C-GX# copy usb1:nxos64-cs.10.4.4.M.bin bootflash: Nexus-9364C-GX# show file bootflash:nxos64-cs.10.4.4.M.bin md5sum 366ef574de8899b7179e75dc6856492f Nexus-9364C-GX# copy usb1:n9000-epld.10.4.4.M.img bootflash: Nexus-9364C-GX#...
Cisco Nexus Switch Stuck in Loader
It seems the bootflash is corrupted. I have tried other images. But I got the same error. loader> help ? Print the command list boot Boot image dir List file...