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Community Member

Uplink from 6509 Giga port

Hello ,

I'm trying to connect one of the Giga port (SX) on 6509 to Foundry Switch ( ServerIron XL ---8 port ) . The Giga port on 6509 is assigned to some Vlan say Vlan 10 . I'm trying to connect this port as "UPLINK " to Foundry . The 10/100 ports in Foundry are configured to do Load Balancing .The Foundry Switch has a Giga port labelled as GIG SX .I'm getting link up + link activity on foundry side whereas in Cisco side there is no link and it says "not connected ".The cat OS ver on 6509 Version NmpSW: 7.4(2). Tried with some other ports (SX modules ) + changed the patch cords , no luck. Any Idea ????????.

Thanks

Raju

3 REPLIES
VIP Purple

Re: Uplink from 6509 Giga port

Hello Raju,

you might have a spanning tree problem. The default STP for the Foundry ServerIron is the Multiple Spanning Tree Protocol (MSTP), which means that each port-based VLAN, including the default VLAN, has its own spanning tree. Try to disable STP alltogether on both ports to check if you get any connectivity at all.

HTH,

Georg

Community Member

Re: Uplink from 6509 Giga port

Thanks Georg. The configuration part comes next. When I connect the uplink , as long as connectivity at physical layer is ok, I should get a link light (green ) on both the ends ,right .

Thanks

Community Member

Re: Uplink from 6509 Giga port

Hello Raju,

can be a problem with the auto negotiation process of 802.3z standard. Try no negotiation auto on the cat.

Bye

Jo

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