This read-only enumerated value reports the transmit-side status of the channel in the egress direction toward the line, indicating whether it's transmitting normally or actively sending an AIS or FERF alarm indication outward, functioning as this table's version of the same egress-transmit health signal seen elsewhere in the MIB (commonChanEgrXmtState). Admins use it the same way - to see whether this card itself is the source of an alarm condition being signaled outward on this channel's egress line-side path. For example, a channel reporting sendingFerf here tells the admin this end is signaling a far-end receive failure outward, typically because it detected a receive problem on its own ingress side.