Hi,
I was doing the multicast lab in SP workbook section 1 - 6.1
In IOS-XR (XR1), it always prompted me error when I entered "mdt default ipv4 232.0.0.1" under VRF.
I was able to commit it if I changed the IP address to anything else, like 232.0.0.19.
What's wrong with the IP 232.0.0.1? It was actually followed the workbook sample question and answer.
thanks
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RP/0/0/CPU0:XR1#sh run multicast-routing
Sun Sep 1 07:58:20.285 UTC
multicast-routing
address-family ipv4
mdt source Loopback0
interface all enable
!
vrf VPN_A
address-family ipv4
mdt data 232.0.1.0/24
interface all enable
!
!
!
RP/0/0/CPU0:XR1#conf t
Sun Sep 1 07:58:32.555 UTC
RP/0/0/CPU0:XR1(config)#multicast-routing
RP/0/0/CPU0:XR1(config-mcast)#vrf VPN_A
RP/0/0/CPU0:XR1(config-mcast-VPN_A)#mdt default ipv4 232.0.0.1
RP/0/0/CPU0:XR1(config-mcast-VPN_A)#commit
% Failed to commit one or more configuration items during a pseudo-atomic operation. All changes made have be en reverted. Please issue 'show configuration failed' from this session to view the errors
RP/0/0/CPU0:XR1(config-mcast-VPN_A)#show configuration fail
Sun Sep 1 07:59:58.049 UTC
!! SEMANTIC ERRORS: This configuration was rejected by
!! the system due to semantic errors. The individual
!! errors with each failed configuration command can be
!! found below.
multicast-routing
vrf VPN_A
address-family ipv4
mdt default ipv4 232.0.0.1
!!% 'ipv4-mfwd-ma' detected the 'warning' condition 'invalid prefix'
!
!
!
end
RP/0/0/CPU0:XR1(config-mcast-VPN_A)#