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Informacast fails to individual or small group but works for large group

Chris Knipe
Beginner
Beginner

I am having some issues with informacast after a network migration.  The branch sites that I am having trouble with are configured with dual uplinks to different routers.  The core 1 and core 2 routers are configured with anycast rp. 

 

The informacast behaivor is a bit odd.  When attempting to page a small group of 3 phones, the test fails, but when you page the group with all phones in the building, the test works.  And then after the all page, the original failed group of 3 phones will also continue to work for a duration of time. Can someone help with my multicast settings and let me know if there are any config issues?

 

Core1:

ip pim rp-address 10.254.254.254 group-list 224.0.0.0/4
ip pim ssm range 232.0.0.0/8
ip pim anycast-rp 10.254.254.254 10.254.254.252
ip pim anycast-rp 10.254.254.254 10.254.254.253

 

Core1-IPN-1# sho ip mroute 239.255.255.253 

show ip mroute 239.255.255.253
IP Multicast Routing Table for VRF "default"

(*, 239.255.255.253/32), uptime: 2d19h, pim ip
Incoming interface: Null, RPF nbr: 0.0.0.0
Outgoing interface list: (count: 8)
Ethernet1/19, uptime: 1d22h, pim
Ethernet1/16, uptime: 1d22h, pim
Ethernet1/18, uptime: 2d19h, pim
Ethernet1/22, uptime: 2d19h, pim
Ethernet1/23, uptime: 2d19h, pim
Ethernet1/21, uptime: 2d19h, pim
Ethernet1/9, uptime: 2d19h, pim
Ethernet1/4, uptime: 2d19h, pim


(10.100.10.35/32, 239.255.255.253/32), uptime: 2d19h, pim mrib ip
Incoming interface: Null, RPF nbr: 0.0.0.0
Outgoing interface list: (count: 0)


(10.221.20.15/32, 239.255.255.253/32), uptime: 00:07:55, pim mrib ip
Incoming interface: Ethernet1/3, RPF nbr: 10.221.102.1
Outgoing interface list: (count: 8)
Ethernet1/4, uptime: 00:06:53, pim
Ethernet1/23, uptime: 00:07:55, pim
Ethernet1/22, uptime: 00:07:55, pim
Ethernet1/21, uptime: 00:07:55, pim
Ethernet1/19, uptime: 00:07:55, pim
Ethernet1/18, uptime: 00:07:55, pim
Ethernet1/16, uptime: 00:07:55, pim
Ethernet1/9, uptime: 00:07:55, pim


(10.221.20.31/32, 239.255.255.253/32), uptime: 00:00:32, pim mrib ip
Incoming interface: Ethernet1/3, RPF nbr: 10.221.102.1
Outgoing interface list: (count: 8)
Ethernet1/4, uptime: 00:00:26, pim
Ethernet1/23, uptime: 00:00:32, pim
Ethernet1/22, uptime: 00:00:32, pim
Ethernet1/21, uptime: 00:00:32, pim
Ethernet1/19, uptime: 00:00:32, pim
Ethernet1/18, uptime: 00:00:32, pim
Ethernet1/16, uptime: 00:00:32, pim
Ethernet1/9, uptime: 00:00:32, pim


(10.221.20.32/32, 239.255.255.253/32), uptime: 00:01:32, pim mrib ip
Incoming interface: Ethernet1/4, RPF nbr: 10.221.102.5
Outgoing interface list: (count: 8)
Ethernet1/4, uptime: 00:00:26, pim, (RPF)
Ethernet1/23, uptime: 00:01:32, pim
Ethernet1/22, uptime: 00:01:32, pim
Ethernet1/21, uptime: 00:01:32, pim
Ethernet1/19, uptime: 00:01:32, pim
Ethernet1/18, uptime: 00:01:32, pim
Ethernet1/16, uptime: 00:01:32, pim
Ethernet1/9, uptime: 00:01:32, pim


(10.221.20.33/32, 239.255.255.253/32), uptime: 00:00:32, pim mrib ip
Incoming interface: Ethernet1/3, RPF nbr: 10.221.102.1
Outgoing interface list: (count: 8)
Ethernet1/4, uptime: 00:00:26, pim
Ethernet1/23, uptime: 00:00:32, pim
Ethernet1/22, uptime: 00:00:32, pim
Ethernet1/21, uptime: 00:00:32, pim
Ethernet1/19, uptime: 00:00:32, pim
Ethernet1/18, uptime: 00:00:32, pim
Ethernet1/16, uptime: 00:00:32, pim
Ethernet1/9, uptime: 00:00:32, pim


(10.221.20.35/32, 239.255.255.253/32), uptime: 00:00:32, pim mrib ip
Incoming interface: Ethernet1/3, RPF nbr: 10.221.102.1
Outgoing interface list: (count: 8)
Ethernet1/4, uptime: 00:00:26, pim
Ethernet1/23, uptime: 00:00:32, pim
Ethernet1/22, uptime: 00:00:32, pim
Ethernet1/21, uptime: 00:00:32, pim
Ethernet1/19, uptime: 00:00:32, pim
Ethernet1/18, uptime: 00:00:32, pim
Ethernet1/16, uptime: 00:00:32, pim
Ethernet1/9, uptime: 00:00:32, pim

Core2# 

ip pim rp-address 10.254.254.254 group-list 224.0.0.0/4
ip pim ssm range 232.0.0.0/8
ip pim anycast-rp 10.254.254.254 10.254.254.252
ip pim anycast-rp 10.254.254.254 10.254.254.253

 

Core2-IPN-1# sho ip mroute 239.255.255.253

(10.100.10.35/32, 239.255.255.253/32), uptime: 2d19h, pim ip
Incoming interface: Ethernet1/6, RPF nbr: 10.222.102.5
Outgoing interface list: (count: 7)
Ethernet1/22, uptime: 1d21h, pim
Ethernet1/18, uptime: 1d22h, pim
Ethernet1/19, uptime: 2d18h, pim
Ethernet1/23, uptime: 2d19h, pim
Ethernet1/21, uptime: 2d19h, pim
Ethernet1/16, uptime: 2d19h, pim
Ethernet1/9, uptime: 2d19h, pim

Branch:

ip pim rp-address 10.254.254.254

 

Branch:show ip mroute 239.255.255.253


(*, 239.255.255.253), 2d19h/stopped, RP 10.254.254.254, flags: SJC
Incoming interface: TenGigabitEthernet1/1, RPF nbr 172.16.255.1
Outgoing interface list:
Vlan540, Forward/Sparse, 03:39:13/00:02:47
Vlan520, Forward/Sparse, 04:38:51/00:02:44
Vlan512, Forward/Sparse, 2d19h/00:02:41

(10.100.10.35, 239.255.255.253), 2d19h/00:02:52, flags: JT
Incoming interface: TenGigabitEthernet1/2, RPF nbr 172.16.255.5
Outgoing interface list:
Vlan540, Forward/Sparse, 03:39:14/00:02:47
Vlan520, Forward/Sparse, 04:38:52/00:02:43
Vlan512, Forward/Sparse, 2d19h/00:02:40

 

Branch# show ip pim neighbor

ADMIN-MDF-4500X#sho ip pim ne
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
P - Proxy Capable, S - State Refresh Capable, G - GenID Capable,
L - DR Load-balancing Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
172.16.255.5 TenGigabitEthernet1/2 1d20h/00:01:28 v2 1 / G
172.16.255.1 TenGigabitEthernet1/1 2d18h/00:01:33 v2 5 / DR G

 

 

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