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Not Working: Cascade two AG (Brocade 300 - Brocade 200 AG - HP 4/12 AG

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I'm trying to cascade two access gateways as per published Brocade AG documentaiton and running into an issue.

We have:

- Brocade 300 in Native Mode running FabricOS 7.1.1

- Brocade 200 in Access Gateway Mode running Fabric OS 6.2.2f

- HP 4/12 Blade Interconnect (C7000) in Access Gateway Mode running Fabric OS 6.2.2f

What I'm trying to do is:

[brocade 300 - NATIVE] --- [brocade 200 - AG (Core)] -- [HP 4/12 AG (Edge)]

In the above configration both:

- Brocade 200 uplinks to 300 via 2 x 4G links

- HP 4/12 uplinks to Brocade 200 via 2 x 4G links

- Brocade 200 and HP 4/12 switches were configured as follows:


ag --modeenable


ag --policydisable pg

ag --policyenable auto


No other commands were used.

I see uplink ports from HP 4/12 negotiate as G ports on B200. One of the two uplinks disables.

What works:

- When I connect both Brocade 200 AG and HP 4/12 AG to B300 directly (no AG cascade).


- Is my target state supported?

- Am I missing a command / setting / parameter somewhere?

Reference docs: (pg. 70)

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