HP Comware 5 Debug Manual Vol 1

Table 74 Output from the debugging mpls fast forwarding command
Field
Description
MPLS fast switching : IP Packet for swap 3 label
bottom of stack !
The packet is an IP packet after label 3 was popped
off.
MPLS fast switching : L2VPN Packet ! The packet forwarded is an L2VPN packet.
Examples
# Configure MPLS L3VPN basic capability. Enable debugging for MPLS fast forwarding on a P device.
<Sysname> debugging mpls fast-forwarding
*Sep 25 14:08:40:966 2006 2921B MFW/7/MPLSFW PACKET:
MPLS Fast Switch: Rcv MPLS Pkt from Interface Ethernet1/1.1, Label(s)=1106, EXP=0, TTL=254
// MPLS received an MPLS packet with the in-label 1106, EXP 0, and TTL 254.
*Sep 25 14:08:40:966 2006 2921B MFW/7/MPLSFW PACKET:
MFW_FastSwitch: Using Label: 1106 to search cache after cutting other labels.
// MPLS was searching the fast forwarding cache for label 1106.
*Sep 25 14:08:40:966 2006 2921B MFW/7/MPLSFW PACKET:
MFW_FastSwitch suceed sending MPLS or IP Packet with:
output Interface: Serial0/2, using Qos Physical Transimit Interface!
// MPLS successfully sent the packet through interface Serial 0/2.
…
*Sep 25 14:08:45:338 2006 2921B MFW/7/MPLSFW PACKET:
MFW_FastSwitch:POP Label 1095 and Send IP Packet received from Interface :Ethernet1/1.1
IP normal forwarding success !
// MPLS popped label 1095 and successfully sent the packet through interface Ethernet 1/ 1.1.
debugging mpls ldp
Use debugging mpls ldp to enable debugging for LDP.
Use undo debugging mpls ldp to disable debugging for LDP.
Syntax
debugging mpls ldp { { advertisement | all | error | main | notification | pdu | session | socket | timer }
[ interface interface-type interface-number ] | fec [ [ vpn-instance vpn-instance-name ] fec mask ] | hsb
| remote-peer [ remote-peer-name ] }
undo debugging mpls ldp { { advertisement | all | error | main | notification | pdu | session | socket
| timer } [ interface interface-type interface-number ] | fec [ [ vpn-instance vpn-instance-name ] fec mask ]
| hsb | remote-peer [ remote-peer-name ] }
Default
All types of debugging for LDP are disabled.
Views
User view
Default command level
1: Monitor level
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