Following is information specific to pseudowire switching point sub-TLVs:
Pseudowire ID of last pseudowire segment traversed — Sub-TLV type that contains a pseudowire ID in the format of the pseudowire ID
Pseudowire switching point description string — An optional description text string of up to 80 characters
IP address of pseudowire switching point — An options sub-TLV; IP V4 or V6 address of the pseudowire switching point.
MH VCCV capability indication