I have 2 6509 with redundant SUPII, w/ PFX2 and MFC2 cards, 2 SFM and 2 x6816 cards each.
Between the 2, Im running BGP, with 4 peers (2 per box) and OSPF. I also have about 2500 subinterfaces per box (about 1000 per interface).
After adding the subinterfaces, I have found that any time I need to save config changes, a wr mem can take 2 minutes. This is with not traffic. With traffic, its has taken sometimes 5 to 10 minutes, if it ever completes.
My first thought was that it was the number of subinterfaces. Now I'm not so sure.
CPU never gets about 30% on the SUPII. Ive done tests where if I dont make changes to any interface with subinterfaces, a wr mem only takes 45s, however if I shut or no shut an interface, it could take 2 minutes or more.
Has anyone run into this before?