Frame support of E1000-2 card for 15454

[szlizm0268]

Does E1000-2 on 15454 support Jumbo frame and Q-in-Q frame? How to configure them? Anyone has the experience?

[melon_2]

They don't support Jumbo frames

Straight from the manual:

The ONS 15454 E-Series cards can support 1522-byte frames on Tagged ports. On Untagged ports the E-Series can support frames up to 1518 bytes. Frames greater than 1522 bytes will be dropped for both the Tagged and Untagged ports.

They aren't clear on the Q in Q, but I would imagine that if you aren't using the cards to do the stacking, you could just pass the VLAN stack through the E card with that VLAN ID.

[Marvin Rhoads]

Q-in-Q appends an additional VLAN wrapper around the incoming frames, making them exceed the ougoing fame size of the originating host and thus usually meaning that they need to be transported as jumbo frames.