802.1q between Cisco switch and Nortel switch

[G van Hamburg]

Does anyone know if this will work because of the spanning tree per Vlan on a Cisco switch, and spanning tree per network on the Nortel switch.

Any possible solution, except switching spanning tree off of course.

TIA

Plan your work............Work your plan

 

[ZachBenj]

Spanning tree and Vlans are not dependent on each other. If you turn on 802.1Q and turn-off the ISL on the cisco switch they should pass traffic between them in there designated VLANs


My suggestions are what I would try myself. If incorrect, I welcome corrections to my knowledge.
Scott
stomlin@baptistfirst.org

 

[ruster]

I just had a similar scenario regarding 802.1q between Cisco and Nortel. Got it working. Essentially my scenario is that I have a full Cisco Networking environment, however we use Nortel i2002 IP phone sets. The objective was to provision Power over ethernet to the phones, however Cisco does not have an edge product line released yet which supports the 802.3af PoE standard ratified in June. The phone sets are 802.3af compliant. The solution ended up being for areas we are deploying dense amount of phone sets, 802.1q trunk the applicable vlans from our core Cisco environment to a cisco edge swtich (such as the 3500 catalyst). As we are still trying to figure out how to connect Cisco SX GBIC link to Nortel, we used a cross-over cable between the Cisco switch, and the Nortel, and trunked the admin vlan for the PC's and the VoIP vlan for the phone sets to the Nortel switch. All works well. The Nortel switch detects the device connected is a power device, the PC's which connect to the imbedded ethernet port on the phone are mapped to the native vlan defined, and the voice calls use the VoIP vlan which we also trunked.

Ruster
CCNP,CCDP,CCEA,MCSE,CWNA