I'm running Fuji iosxe 16.9.1 on my two 9407R switches that I want to cable together as a StackWise Virtual (SWV) switch. In reading the 16.9.1 config guides and release notes i've come to the realization that I really don't want to use dual-SUPs in the chassis (even for a future version that supports dual-SUP StackWise and ISSU), and don't want to implement Enhanced PAgP (ePAgP) for dual-active detection.
- If I go with dual-SUPs, I can only have 30G of bandwidth for SWV so I can use the Fast Hello dual-active detection method on the last 10G SUP port left.
- If I go with ePAgP for dual-active detection, it gives me more SWV bandwidth but all of my port channels to upstream/downstream switches need to run ePAgP (i.e. cannot run LACP on the port channels and the port channeled switches must support ePAgP).
Can someone confirm this, especially statement #2?
Here are the rules/limitations I have put together so far. If they are incorrect then please enlighten me?
- If Enhanced PAgP dual-active detection is used then all upstream/downstream switches attached to the virtual switch must use ePAgP instead of LACP to detect a dual-active scenario
- Also means all upstream/downstream switches must support ePAgP.
- This does let us use 40G bandwidth for SWV (if put ePAgP dual-active links on line card ports) but to the exclusion of using ePAgP for port channels.
- Don't want to be limited to only using ePAgP for switch port channels to virtual switch, so need to use Fast Hello Dual-Active Detection
- For Fast Hello Dual-Active Detection, you have these choices:
- Single SUP, you can use:
- SUP Ports 1-4 for SWV, ports 7-8 for Fast Hello or
- SUP Ports 5-8 the SWV, ports 1-2 for Fast Hello or
- SUP Ports 9 for SWV, ports 5-6 for Fast Hello or (40G SWV ports)
- SUP Ports 10 for SWV, ports 1-2 for Fast Hello (40G SWV ports)
- Dual SUP, you can use (limits SWV bandwidth, gives only one Fast Hello link and cannot use 40G ports so not recommended):
- SUP Ports 1-3 for SWV, port 4 for Fast Hello or
- Cannot use 40G ports 9 or 10
