Всё работало пока что-то сам не сделал... как говорится хочешь улучшить - сохрани как было

Есть схема: uplink - cisco7609 - (vlan8) - dlink3627 - (vlan8) - dlink3552 - приставка.
Трогался только 3627.
Кошка к аплинку по mbgp, на ней pim-sparse. 3552 - multicast vlan8.

3627 был настроен только с igmp-snooping мультикаст вланом.

Решил перевести его на pim (порекомендовал uplink). С тех пор у 3627 есть только:
Command: show igmp_snooping group
Source/Group : NULL / 224.0.1.60
VLAN Name/VID : iptv/8
Port Member : 23
Mode : EXCLUDE
Source/Group : NULL / 224.0.1.127
VLAN Name/VID : iptv/8
Port Member : 23
Mode : EXCLUDE
Source/Group : NULL / 229.111.112.12
VLAN Name/VID : iptv/8
Port Member : 23
Mode : EXCLUDE
Source/Group : NULL / 239.195.32.1
VLAN Name/VID : iptv/8
Port Member : 23
Mode : EXCLUDE
Source/Group : NULL / 239.195.32.3
VLAN Name/VID : iptv/8
Port Member : 25
Mode : EXCLUDE
Source/Group : NULL / 239.195.32.7
VLAN Name/VID : iptv/8
Port Member : 25
Mode : EXCLUDE
Source/Group : NULL / 239.195.32.8
VLAN Name/VID : iptv/8
Port Member : 25
Mode : EXCLUDE
Source/Group : NULL / 239.195.32.74
VLAN Name/VID : iptv/8
Port Member : 25
Mode : EXCLUDE
Source/Group : NULL / 239.195.33.1
VLAN Name/VID : iptv/8
Port Member : 25
Mode : EXCLUDE
Source/Group : NULL / 239.195.33.3
VLAN Name/VID : iptv/8
Port Member : 25
Mode : EXCLUDE
Source/Group : NULL / 239.195.33.31
VLAN Name/VID : iptv/8
Port Member : 23
Mode : EXCLUDE
Source/Group : NULL / 239.255.255.250
VLAN Name/VID : iptv/8
Port Member : 23
Mode : EXCLUDE
Source/Group : NULL / 239.255.255.253
VLAN Name/VID : iptv/8
Port Member : 23
Mode : EXCLUDE
Total Entries : 13

Что выглядит правильным за исключением момента что в мемберах только исходящие порты, а src порт 27 отсутствует. Ну и как результат:
Command: show igmp_snooping forwarding
Total Entries : 0

При этом:
Command: show igmp group

Interface Multicast Group Last Reporter IP Querier IP Expire
------------ --------------- --------------- --------------- ---------
iptv 224.0.1.60 0.0.0.0 172.18.0.1 238
iptv 224.0.1.127 0.0.0.0 172.18.0.1 238
iptv 229.111.112.12 0.0.0.0 172.18.0.1 238
iptv 239.195.32.1 0.0.0.0 172.18.0.1 238
iptv 239.195.33.31 0.0.0.0 172.18.0.1 259
iptv 239.255.255.250 0.0.0.0 172.18.0.1 238
iptv 239.255.255.253 0.0.0.0 172.18.0.1 238

Total Entries: 7

172.18.0.1 - интерфейс кошки в vlan8

Кошка по этому поводу думает:
sh ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
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,
V - RD & Vector, v - Vector
Outgoing interface flags: H - Hardware switched, A - Assert winner
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.255.255.253), 12:36:58/00:02:15, RP 0.0.0.0, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 239.255.255.250), 12:36:58/00:02:15, RP 0.0.0.0, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 239.195.33.3), 11:03:25/00:02:09, RP 172.23.246.18, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 239.195.33.1), 11:03:57/00:02:09, RP 172.23.246.18, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 239.195.33.31), 12:36:58/00:02:59, RP 172.23.246.18, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 239.195.32., 11:21:55/00:02:09, RP 172.23.246.18, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 239.195.32.7), 11:02:30/00:02:09, RP 172.23.246.18, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 239.195.32.3), 11:04:30/00:02:09, RP 172.23.246.18, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 239.195.32.1), 00:16:13/00:02:15, RP 172.23.246.18, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 239.195.32.74), 10:32:08/00:02:09, RP 172.23.246.18, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 229.111.112.12), 12:36:58/00:02:15, RP 0.0.0.0, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 224.0.1.60), 12:36:58/00:02:15, RP 0.0.0.0, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 224.0.1.40), 11:00:56/00:02:50, RP 0.0.0.0, flags: DCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Vlan8, Forward/Sparse, 09:48:51/00:00:00
Vlan3, Forward/Sparse, 09:48:52/00:00:00
(*, 224.0.1.127), 12:36:58/00:02:15, RP 0.0.0.0, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null

Сломал голову - где копать?

Конфиг 3627:
# VLAN

create vlan iptv tag 8
config vlan iptv add tagged 23,25-27 advertisement disable

# LIMITED_MULTICAST_RANGE

create multicast_range 1 from 224.0.0.1 to 224.0.0.2
create multicast_range 2 from 239.195.0.0 to 239.195.255.255

# IP

create ipif iptv 172.18.0.11/16 iptv state enable
config ipif iptv proxy_arp disable local disable
config ipif iptv ip_mtu 1500
config ipif iptv ip_directed_broadcast disable

# MCFILTER

config multicast filtering_mode iptv forward_all_groups

# SNOOP

config igmp_snooping vlan iptv report_suppression disable
config igmp_snooping vlan iptv state enable fast_leave disable
config igmp_snooping querier vlan iptv query_interval 125 max_response_time 10 robustness_variable 2 last_member_query_interval 1 state disable version 2
config router_ports iptv add 27
config limited_multicast_addr ports 1-27 state disable

# IGMP

config igmp ipif iptv version 2 query_interval 125 max_response_time 10 robustness_variable 2 state enable
config igmp ipif iptv last_member_query_interval 1
config igmp check_subscriber_source_network ipif iptv enable

# PIMSM

enable pim
config pim cbsr hash_masklen 30
config pim cbsr bootstrap_period 60
config pim register_suppression_time 60
config pim register_probe_time 5
config pim last_hop_spt_switchover never
config pim crp holdtime 150 priority 192
config pim crp wildcard_prefix_cnt 0
config pim ipif System state disable hello 30 jp_interval 60 mode dm dr_priority 1 passive disable
config pim cbsr ipif System priority -1
config pim ipif iptv state enable hello 30 jp_interval 60 mode sm dr_priority 1 passive disable
config pim cbsr ipif iptv priority -1
config pim-ssm state disable group_range 232.0.0.0/8

На 3552 всё красиво:
show igmp_snooping forwarding
Command: show igmp_snooping forwarding
VLAN Name : iptv
Source IP : *
Multicast Group : 224.0.1.60
Port Member : 5,49
VLAN Name : iptv
Source IP : *
Multicast Group : 224.0.1.127
Port Member : 8,15,49
VLAN Name : iptv
Source IP : *
Multicast Group : 229.111.112.12
Port Member : 45,49
VLAN Name : iptv
Source IP : *
Multicast Group : 239.195.32.2
Port Member : 49,51
VLAN Name : iptv
Source IP : *
Multicast Group : 239.195.33.31
Port Member : 5,49
VLAN Name : iptv
Source IP : *
Multicast Group : 239.255.255.250
Port Member : 1,8,15,49,51
VLAN Name : iptv
Source IP : *
Multicast Group : 239.255.255.253
Port Member : 8,15,45,49
Total Entries : 7

49 - uplink к 3627

_________________
Размер - величина зависящая от обстоятельств...

Примеры настройки PIM можно найти у нас в презентации: ftp://ftp.dlink.ru/pub/Trainings/D-Link_switches_and_multicast.zip

переделал. сделал как по картинкам.
Источник(172.23.246.17) -vlan3- (172.23.246.18) cisco (192.168.18.1) -vlan11- (192.168.18.2,27p) dgs3627 (172.18.0.11,23p) -ism_vlan8- (29p)des3552 - ghbcnfdrf
3552 на нём всё вроде ОК:
Command: show igmp_snooping group
Source/Group : NULL/224.0.1.60
VLAN Name/VID : iptv/8
Member Ports : 5
UP Time : 76291
Expiry Time : 153
Filter Mode : EXCLUDE
Source/Group : NULL/239.195.32.2
VLAN Name/VID : iptv/8
Member Ports : 5
UP Time : 2
Expiry Time : 259
Filter Mode : EXCLUDE
Source/Group : NULL/239.195.32.10
VLAN Name/VID : iptv/8
Member Ports : 51
UP Time : 1515
Expiry Time : 163
Filter Mode : EXCLUDE
Total Entries: 7

Command: show igmp_snooping forwarding
VLAN Name : iptv
Source IP : *
Multicast Group : 224.0.1.60
Port Member : 5,49
VLAN Name : iptv
Source IP : *
Multicast Group : 239.195.32.2
Port Member : 5,49
VLAN Name : iptv
Source IP : *
Multicast Group : 239.195.32.10
Port Member : 49,51
Total Entries : 7

3627:
Command: show pim neighbor
PIM Neighbor Address Table
Interface Name Neighbor Address Expired Time
--------------- ---------------- ------------
iptv-cisco 192.168.18.1 91
Total Entries: 1

Command: show pim static_rp
PIM Static RP Table
Group RP Address
------------------ ------------------
239.195.0.0/16 172.23.246.18
Total Entries: 1

Command: show pim rpset
PIM RP-Set Table
Bootstrap Router: 0.0.0.0
Group Address RP Address Holdtime Expired Time Type
------------------ ------------------ --------- ------------ ------
239.195.0.0/16 172.23.246.18 0 0 Static
Total Entries: 1

Command: show igmp_snooping group
Source/Group : NULL / 224.0.1.60
VLAN Name/VID : iptv/8
Port Member : 23
Mode : EXCLUDE
Source/Group : NULL / 239.195.32.2
VLAN Name/VID : iptv/8
Port Member : 23,25
Mode : EXCLUDE
Source/Group : NULL / 239.195.32.10
VLAN Name/VID : iptv/8
Port Member : 23
Mode : EXCLUDE
Total Entries : 13

Command: show igmp_snooping forwarding
Total Entries : 0

Command: show pim ipmroute
PIM IP Multicast Route Table
UA = Upstream AssertTimer
AM = Assert Metric
AMPref = Assert MetricPref
ARB = Assert RPTBit
Group Address Source Address UA AM AMPref ARB Flag Type Mode
------------------ ------------------ ---- ---- ------ ---- ---- ------- ----
239.195.32.2 172.23.246.18/32 0 0 0 0 RPT (*.G) ASM
239.195.32.10 172.23.246.18/32 0 0 0 0 RPT (*.G) ASM
Total Entries: 2

cisco:
sh ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
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,
V - RD & Vector, v - Vector
Outgoing interface flags: H - Hardware switched, A - Assert winner
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.195.32.10), 00:41:17/00:03:12, RP 172.23.246.18, flags: S
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Vlan11, Forward/Sparse, 00:41:17/00:03:12
(93.100.195.164, 239.195.32.10), 00:00:35/00:02:24, flags: MT
Incoming interface: Vlan3, RPF nbr 172.23.246.17, Mbgp
Outgoing interface list:
Vlan11, Forward/Sparse, 00:00:35/00:03:12
(*, 239.195.32.2), 04:09:32/00:02:58, RP 172.23.246.18, flags: S
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Vlan11, Forward/Sparse, 04:09:32/00:02:58
(93.100.195.164, 239.195.32.2), 00:02:24/00:00:35, flags: MT
Incoming interface: Vlan3, RPF nbr 172.23.246.17, Mbgp
Outgoing interface list:
Vlan11, Forward/Sparse, 00:02:24/00:02:58
(*, 224.0.1.40), 04:48:06/00:02:51, RP 0.0.0.0, flags: DCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Vlan11, Forward/Sparse, 04:48:06/00:00:00
Vlan3, Forward/Sparse, 04:48:06/00:00:00

sh ip pim nei
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
172.23.246.17 Vlan3 16:45:23/00:01:31 v2 10000/ DR S P G
192.168.18.2 Vlan11 05:14:08/00:01:42 v2 1 / DR G

sh ip pim rp
Group: 239.195.32.10, RP: 172.23.246.18, next RP-reachable in 00:00:54
Group: 239.195.32.2, RP: 172.23.246.18, next RP-reachable in 00:01:08

sh ip mroute sum
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
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,
V - RD & Vector, v - Vector
Outgoing interface flags: H - Hardware switched, A - Assert winner
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.195.32.10), 00:43:39/00:02:50, RP 172.23.246.18, OIF count: 1, flags: S
(93.100.195.164, 239.195.32.10), 00:02:57/00:00:02, OIF count: 1, flags: MT
(*, 239.195.32.2), 04:11:54/00:02:36, RP 172.23.246.18, OIF count: 1, flags: S
(93.100.195.164, 239.195.32.2), 00:01:02/00:01:57, OIF count: 1, flags: MT
(*, 224.0.1.40), 04:50:28/00:02:21, RP 0.0.0.0, OIF count: 2, flags: DCL

sh ip mroute cou
IP Multicast Statistics
4 routes using 2390 bytes of memory
3 groups, 0.33 average sources per group
Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kilobits per second
Other counts: Total/RPF failed/Other drops(OIF-null, rate-limit etc)
Group: 239.195.32.10, Source count: 0, Packets forwarded: 0, Packets received: 0
Group: 239.195.32.2, Source count: 1, Packets forwarded: 0, Packets received: 0
RP-tree: Forwarding: 0/0/0/0, Other: 0/0/0
Source: 93.100.195.164/32, Forwarding: 0/0/0/0, Other: 0/0/0
Group: 224.0.1.40, Source count: 0, Packets forwarded: 0, Packets received: 0


вот вроде всё есть - но нифига нет...

_________________
Размер - величина зависящая от обстоятельств...

забыл:
sh ip igmp gr
IGMP Connected Group Membership
Group Address Interface Uptime Expires Last Reporter Group Accounted
224.0.1.40 Vlan3 16:54:24 00:02:18 172.23.246.18

_________________
Размер - величина зависящая от обстоятельств...

На DGS-3627 какие текущие настройки в плане мультикаста? Вы пробовали Static RP прописать?