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A-series IRF and Procurve ISC (distributed trunking)

Bartlomiej Bartkiewicz
Occasional Advisor

A-series IRF and Procurve ISC (distributed trunking)

Hello everyone,

 

Has anybody succeded to connect IRF switch with f.ex. a pair of Procurve 6600 configured for ISC (distributed trunking)?

 

We've configured everything according to manuals (IRF on pair of S12508, switch-interconnect and peer-keepalive VLAN and trunk to S12508 on pair of Procurve 6600) but the installation is unstable. Procurve switches CPU is very busy, ISC link is going UP/DOWN and the Spanning-tree root is changing between 6600 devices. 

It seems the boxes can not work togather but it is difficult to accept for me.

 

S12508 are running version 5.20 and Procurve 6600 are running version 15.05.0006.

 

Any help appreciated.

Bartek

3 REPLIES
Fredrik Lönnman
Honored Contributor

Re: A-series IRF and Procurve ISC (distributed trunking)

Im pretty sure the ProCurve pdf about distributed trunking states thats its only supported to run DT against servers and not other pair of switches, since its not a real distributed port channel.

---
CCIE Service Provider
MASE Network Infrastructure [2011]
H3CSE
CCNP R&S

Bartlomiej Bartkiewicz
Occasional Advisor

Re: A-series IRF and Procurve ISC (distributed trunking)

Hi Fredric,

 

In the latest release it is supposed to work also with switches.

 

Best regards

Bartek

Oleg Sukharev
Valued Contributor

Re: A-series IRF and Procurve ISC (distributed trunking)

Hi Bartolomiej,

 

Have you configured link-aggregation group on IRF stack as dynamic (LACP)?

If you please, some command output would be nice to figure out possible cause.

 

Commands to run on 6600:

show trunk

show lldp in re

show span

sh log -r

 

Commands to run on IRF

display link-aggregation verbose

display stp

 

WBR

Oleg