This read-write integer sets the egress service rate used for bandwidth accounting and connection admission control on this channel, with its practical ceiling bounded by the logical port's actual speed (e.g., 4830 on a 4-port AUSM card). Admins configure this as the baseline outbound rate the CAC system reserves for this connection when deciding whether new connections can be admitted on the shared port. For example, lowering ausmChanEgrSrvRate for a connection known to need less outbound bandwidth frees up admission headroom for other connections sharing that port.