IS-IS PDU Registry
2011-03-02
2011-07-27
IS-IS PDU Registry
IETF Review
0-14
Unassigned
15
L1-LAN-HELLO-PDU
16
L2-LAN-HELLO-PDU
17
P2P-HELLO-PDU
18
L1-LSP-PDU
19
Unassigned
20
L2-LSP-PDU
21-22
Unassigned
23
MTU-PROBE-PDU
24
L1-CSNP-PDU
25
L2-CSNP-PDU
26
L1-PSNP-PDU
27
L2-PSNP-PDU
28
MTU-ACK-PDU
29-31
Unassigned