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enabled with PIM. A PIM neighboring relationship can be established between the same VPN
instance on different PE devices only after the MTI interface obtains an IP address and becomes
PIM-enabled.
Solution
1. Use the display interface command to examine the MTI interface state and address encapsulation
on the MTI.
2. Use the display multicast-domain default-group command to verify that the same default-group
address has been configured for the same VPN instance on different PE devices.
3. Use the display pim interface command to verify the following:
{ PIM is enabled on at least one interface of the same VPN on different PE devices.
{ The same PIM mode is running on all the interfaces of the same VPN instance on different PE
devices and on all the interfaces of the P router.
4. Use the display ip routing-table command to verify that a unicast route exists from the VPN
instance on the local PE device to the same VPN instance on each remote PE device.
5. Use the display bgp peer command to verify that the BGP peer connections have been correctly
configured.
6. If the problem persists, contact HP Support.
An MVRF cannot be created
Symptom
A VPN instance cannot create an MVRF correctly.
Analysis
• If PIM-SM is running in the VPN instance, the BSR information for the VPN instance is required.
Otherwise, the VPN instance's MVRF cannot be correctly established.
• If PIM-SM is running in the VPN instance, the RP information for the VPN instance is required. If a
unicast route to the RP is not available, it means that a PIM adjacency has not been correctly
established between the public network and the VPN instance. Therefore, the VPN instance cannot
correctly establish its MVRF.
• The VPN DR must have a route to the VPN RP. A route to the multicast source is available in the VPN.
Solution
1. Use the display pim bsr-info command to verify that the BSR information exists on the public
network and VPN instance. If it does not, verify that a unicast route exists to the BSR.
2. Use the display pim rp-info command to examine the RP information. If no RP information is
available, verify that a unicast route exists to the RP. Use the display pim neighbor command to
verify that the PIM adjacencies have been correctly established on the public network and the
VPN.
3. Use the ping command to examine the connectivity between the VPN DR and the VPN RP.
4. If the problem persists, contact HP Support.
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