If you have 4 VLANs (having 802.1Q_ID: 1, 2, 3 and 4) and you want to transport all of them over the FEC-ed link, you could issue something like this at the CLI (if you really don't want to use the Menus): Carying VLANs between switches (using aggregated links, or just one cable) is another thing.
If you have to carry multiple VLANs across these 2 switches, use IEEE 802.1Q frame tagging method on both switches, since HP does not understand Cisco's proprietary ISL (Inter-Switch Link) protocol for frame tagging.Īggregating cables to form a fatter data pipe is one thing. Equivalent standards-based term for aggregating links is LACP (Link Aggregation Control Protocol). HP switches understand FEC, so you can set 2 ports in a 'trunk' of type 'FEC'. FEC is Cisco proprietary and is also known as PAgP. For HP a 'trunk' is a method of combining (aggregating) 2, 3 or 4 cables into a fatter pipe for transporting data.įEC is a means for aggregating 2, 3 or 4 individual cables between 2 switches. For Cisco, a 'trunk' is a method to carry multiple VLANs between switches a trunk might be defined on just 1 physical cable, or on top of an aggregated channel. Cisco trunk concept differs from HP trunk concept.
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