Hello, Thank you. So actually, neither switch is configured incorrectly? I don't need to explicitly define a trunk (ISL or dot1q) for port 15/1. Even with no port configuration the trunk will be there and the PFC will be able to switch out traffic on different VLANs to the MSFC? Sent from Cisco Technical Support iPhone App
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Hello, I'm looking at a pair of old 6509 switches. On one switch port 15/1 (the MSFC) is configured with an ISL trunk. On the other switch there's no port config showing for 15/1. I understand there's an implicit internal trunk created between the PFC and MSFC. I can't see any documentation that says you should configure trunking on 15/1, or make any changes at all. Is configuring an ISL trunk needed? Which switch is configured "correctly"? Both switches are in hybrid mode. Thanks in advance. Sent from Cisco Technical Support iPhone App
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