[evg_b]

Настроил две ME-3800 для раздачи мультикаста.

конфиг первой.

 

ip multicast-routing

 

interface Loopback0

ip address 192.168.5.1 255.255.255.255

 

interface Vlan32

mtu 1580

ip address 172.16.32.1 255.255.255.0

ip pim sparse-mode

mpls ip

 

interface Vlan667

ip address 172.30.20.130 255.255.255.252

ip pim sparse-mode

 

router ospf 1

ispf

timers throttle spf 50 50 5000

timers throttle lsa 10 20 5000

timers lsa arrival 10

timers pacing flood 5

redistribute static subnets

network 172.16.32.0 0.0.0.255 area 0

network 192.168.5.1 0.0.0.0 area 0

mpls ldp sync

 

ip pim rp-address 172.30.29.10 IPTV override

ip route 172.30.29.10 255.255.255.255 172.30.20.129

 

ip access-list standard IPTV

permit 239.72.0.0 0.0.255.255

 

 

 

конфиг второй

 

ip multicast-routing

!

interface Loopback0

ip address 192.168.5.2 255.255.255.255

 

interface Vlan32

mtu 1580

ip address 172.16.32.2 255.255.255.0

ip pim sparse-mode

mpls ip

 

interface Vlan668

ip address 10.254.0.1 255.255.0.0

ip pim passive

 

 

router ospf 1

ispf

timers throttle spf 50 50 5000

timers throttle lsa 10 20 5000

timers lsa arrival 10

timers pacing flood 5

network 172.16.32.0 0.0.0.255 area 0

network 192.168.5.2 0.0.0.0 area 0

mpls ldp sync

 

ip pim rp-address 172.30.29.10 IPTV override

!

ip access-list standard IPTV

permit 239.72.0.0 0.0.255.255

 

 

На первой циске interface vlan667 является источником мультикаста. 172.30.29.10 - точка RP на сети поставщика мультикаста.

На второй циске на interface Vlan668 заказываю мультикаст.

 

Мультикаст приходит, вещается, но почему первая циска отсылает этот же канал обратно, судя по счетчикам на интерфейсе.

Вывод с первой циски во время вещания канала 239.72.0.10.

 

P16#show ip mr

IP Multicast Routing Table

Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C

L - Local, P - Pruned, R - RP-bit set, F - Register flag

T - SPT-bit set, J - Join SPT, M - MSDP created entry, E

X - Proxy Join Timer Running, A - Candidate for MSDP Adv

U - URD, I - Received Source Specific Host Report,

Z - Multicast Tunnel, z - MDT-data group sender,

Y - Joined MDT-data group, y - Sending to MDT-data group

G - Received BGP C-Mroute, g - Sent BGP C-Mroute,

Q - Received BGP S-A Route, q - Sent BGP S-A Route,

V - RD & Vector, v - Vector

Outgoing interface flags: H - Hardware switched, A - Assert win

Timers: Uptime/Expires

Interface state: Interface, Next-Hop or VCD, State/Mode

 

(*, 239.72.0.10), 00:01:15/00:03:14, RP 172.30.29.10, flags: S

Incoming interface: Vlan667, RPF nbr 172.30.20.129

Outgoing interface list:

Vlan32, Forward/Sparse, 00:01:15/00:03:14

 

(*, 224.0.1.40), 14:58:28/00:02:47, RP 0.0.0.0, flags: DCL

Incoming interface: Null, RPF nbr 0.0.0.0

Outgoing interface list:

Vlan667, Forward/Sparse, 01:52:02/00:02:41

 

 

 

P16#show ip pim neighbor

PIM Neighbor Table

Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,

P - Proxy Capable, S - State Refresh Capable, G - GenID Capable

Neighbor Interface Uptime/Expires Ver DR

Address Prio/Mode

172.16.32.2 Vlan32 01:24:55/00:01:33 v2 1 / DR S P G

172.30.20.129 Vlan667 01:49:31/00:01:35 v2 N /

P16#

 

P16#show ip pim rp

P16#show ip pim rp

Group: 239.72.0.10, RP: 172.30.29.10, uptime 00:02:12, expires never

 

 

Почему трафик льется обратно ?

 

счетчик с интерфейса откуда приходит мультикаст.

 

5 minute input rate 8851000 bits/sec, 855 packets/sec

5 minute output rate 7904000 bits/sec, 739 packets/sec

 

Как только выключаю канал, счетчик по нолям в обе стороны.