HP Comware 5 Debug Manual Vol 3

NOTE:

A router does not output

interface driver debugging information about MFIB.

# Enable MFIB unknown packet debugging for the public network. When PIM-DM is enabled on

interfaces, output similar to the following example is generated:

<Sysname> debugging mfib no-cache

*Apr 26 12:43:19:09 2000 Sysname MFIB/7/MFIB NO-CACHE:

(public net):No MFIB entry matches (3.4.5.6, 226.1.1.1)(A08303)

*Apr 26 12:43:19:17 2000 Sysname MFIB/7/MFIB NO-CACHE:

(public net):Receive no cache report,add dummy entry (3.4.5.6, 226.1.1.1)(A07120)

*Apr 26 12:43:19:27 2000 Sysname MFIB/7/MFIB NO-CACHE:

(public net):Cache the packet for (3.4.5.6, 226.1.1.1)(A082099)

//The MFIB received a multicast packet (3.4.5.6, 226.1.1.1). No forwarding entry was found for

the packet. The MFIB created a dummy forwarding entry and cached the multicast packet.

# Enable MFIB packet debugging for the public network. When PIM-DM is enabled on interfaces,

output similar to the following example is generated:

<Sysname> debugging mfib packet

*Apr 26 12:28:50:578 2000 Sysname MFIB/7/MFIB PACKET:

(public net):Receive packet (3.4.5.6, 226.1.1.1), iif = Vlan-interface20, TTL =

128(A08204)

// The MFIB received a multicast packet (3.4.5.6, 226.1.1.1) with a TTL value of 128 on

VLAN-interface 20.

*Apr 26 12:28:50:586 2000 Sysname MFIB/7/MFIB PACKET:

(public net):No MFIB entry matches (3.4.5.6, 226.1.1.1)(A08303)

// The MFIB failed to find a matching multicast forwarding entry.

*Apr 26 12:28:50:605 2000 Sysname MFIB/7/MFIB PACKET:

(public net):Cache the packet for (3.4.5.6, 226.1.1.1)(A082099)

// The MFIB cached the multicast packet (3.4.5.6, 226.1.1.1).

*Apr 26 12:28:50:615 2000 Sysname MFIB/7/MFIB PACKET:

(public net):Forward multicast packet (3.4.5.6, 226.1.1.1) on

Vlan-interface10(A08945)

// The MFIB forwarded the multicast packet (3.4.5.6, 226.1.1.1) to VLAN-interface 10.

*Apr 26 12:28:50:625 2000 Sysname MFIB/7/MFIB PACKET:

(public net):Forward multicast packet (3.4.5.6, 226.1.1.1) at port Ethernet1/0

(A083551)

// The MFIB forwarded the multicast packet (3.4.5.6, 226.1.1.1) out of Ethernet 1/1.

# Enable MFIB debugging for register messages for the public network. The output in this example

was created when the following conditions exist:

 PIM-SM is enabled on the two devices.

 The RP and the BSR are configured.

<Sysname> debugging mfib register