[c-nsp] IGX UXM bandwidth weirdness

[R. Raja]

We have a pair of IGX 8420s connected over a NTM E1 trunk. Over this trunk
several 24-channel UVM connections are routed. Each 24-channel connection
uses up approx 700packets/sec using g729ar8v compression.

We are trying to switch the E1 trunk to a UXM card.  When we do this, the
bandwidth usage by a 24 channel UVM connection remains the same value ie 700
packets/sec. This is unexpected since we expect each UVM connections usage
to drop by about 50% (to about 350cps) since a ATM cell is 53 bytes and FP
cell is 20 bytes.

Is this value configurable somewhere?

Thanks for any assistance.
Raja