Rick Gallahers MPLS Training Guide: Building Multi Protocol Label Switching Networks
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In this exercise, you will work with RFC 3036 and translate LDP messages. Use RFC 3036 to find the correct answers.
1.
Match the correct message type number in hex to the correct title of the message by recording the correct message number in the space provided. Message type numbers available for selection are:
Type length values (TLVs) are a subset of LDP messages. Match the correct TLV number in hex to the correct title of by recording the correct message number in the space provided. TLV numbers available for selection are:
0101, 0103, 0104, 0201, 0202, 0300, 0400
______ ADDRESS LIST
______ ATM
______ FRAME RELAY
______ HOP COUNT
______ KEEP ALIVE
______ PATH LINK
______ STATUS
3.
In the hello message in Figure 2.19, fill in the message type number and the TLV number.
Figure 2.19: Hello Message for Exercise 2.2
Answers
1.
See Section 3.7 of RFC 3036.
0300 Address Message
0301 Address Withdraw
0100 Hello
0200 Initialization
0201 Keep Alive
0404 Label Abort Request
0403 Label Release
0401 Label Request
0402 Label Withdraw Message
0400 Labels (Series)
0001 Notification
2.
Please refer to the tables in the following answer explanation.
0101 ADDRESS LIST
0201 ATM
0202 FRAME RELAY
0103 HOP COUNT
0400 KEEP ALIVE
0104 PATH LINK
0300 STATUS
The following tables are from the reference sheets for RFC 3036.