Alcatel-Lucent 7750 SR OS - Pseudowire Switching TLV

Virtual Leased Line Services
7750 SR OS Services Guide Page 129
Pseudowire Switching TLV
The format of the pseudowire switching TLV is as follows:
0 1 2 3
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|1|0| pw sw TLV (0x096D) | pseudowire sw TLV Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length | Variable Length Value |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Variable Length Value |
| " |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
• PW sw TLV Length — Specifies the total length of all the following pseudowire
switching point TLV fields in octets
• Type — Encodes how the Value field is to be interpreted.
• Length — Specifies the length of the Value field in octets.
• Value — Octet string of Length octets that encodes information to be interpreted as
specified by the Type field.
Pseudowire Switching Point Sub-TLVs
Below are details specific to pseudowire switching point sub-TLVs:
• pseudowire ID of last pseudowire segment traversed — This sub-TLV type contains a
pseudowire ID in the format of the pseudowire ID
• Pseudowire switching point description string — An optional description string of text up
to 80 characters long.
• IP address of pseudowire switching point.
• The IP V4 or V6 address of the pseudowire switching point. This is an optional sub-TLV.
• MH VCCV capability indication.