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This is also using a Sup2T, correct?
If I mixed the 68xx and 69xx series line card, do I get 80Gbps for the 6900x and 40gbps for the 68xx line card? Or would the 69xx series line card be downgraded to 40Gbps?
Each card is provided its maximum bandwidth. I.e. 69xx cards are not themselves slowed by other 40/20 Gbps cards in the chassis.
From my understanding, the 68xx series has a DFC card and thus the fabric speed operates independently. Please correct me if I am wrong.
DFC presence doesn't control fabric bandwidth, although it can assist in taking full advantage of it.
For example a 6748 still has 40 Gbps with CFC or DFC4, while a 6824 only has 20 Gbps even with its DFC4.
