Всем здравствуйте. Просьба не пинать - уже поисковики перерыл, а догать не могу.
Схема такая iptv(multicast) -> (0/1) С2821 (0/0) -> (1/0/19) С3750, порты в одном vlan (1/0/10) -> host. Пытаюсь пробросить iptv в локальную сеть, подключение напрямую хоста к шнурку от провайдера - тв работает нормально.
на сколько понял из документации, мне в таком случае на C2821 нужен pim в sparse-mode (ну всего один комп), т.е циска должна, при запросе с хоста, анонсировать в инт 0/1 потребность в определенном мультикасте. Однако эффект с точностью до наоборот - она начинает тянуть все тв-каналы забивая почти весь линк, грузится при этом проц на 50% - 55%.
sh ver:
Cisco IOS Software, 2800 Software (C2800NM-ADVIPSERVICESK9-M), Version 12.4(20)T, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Thu 10-Jul-08 22:00 by prod_rel_team

ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)

C2821-NO uptime is 4 hours, 9 minutes
System returned to ROM by reload at 10:24:35 UTC Mon Mar 23 2009
System image file is "flash:c2800nm-advipservicesk9-mz.124-20.T.bin"

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
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If you require further assistance please contact us by sending email to
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Cisco 2821 (revision 53.51) with 247808K/14336K bytes of memory.
Processor board ID FCZ113772CB
2 Gigabit Ethernet interfaces
2 Channelized/Clear E1/PRI ports
1 Virtual Private Network (VPN) Module
DRAM configuration is 64 bits wide with parity enabled.
239K bytes of non-volatile configuration memory.
62720K bytes of ATA CompactFlash (Read/Write)

Configuration register is 0x2102

конфиг:
ip source-route
!
ip cef
!
ip multicast-routing
ip multicast cache-headers
!
no ipv6 cef
!
no ip rcmd domain-lookup
!
interface Loopback0
ip address 192.168.10.254 255.255.255.0
ip flow ingress
ip route-cache policy
!
interface GigabitEthernet0/0
description $ETH-LAN$
ip address 10.1.1.254 255.255.255.0
ip access-group LAN in
ip flow ingress
ip nat inside
ip virtual-reassembly
ip route-cache policy
duplex full
speed 1000
no mop enabled
!
interface GigabitEthernet0/1
description $ETH-WAN$
ip address 62.33.184.245 255.255.255.240 secondary
ip address 62.33.184.243 255.255.255.240
ip flow ingress
ip pim query-interval 1
ip nat outside
ip virtual-reassembly max-reassemblies 512
ip route-cache policy
ip policy route-map MAP
duplex full
speed auto
!
ip flow-export source GigabitEthernet0/0
ip flow-export version 5
ip flow-export destination 10.1.1.1 4444
!
ip pim autorp listener
ip pim spt-threshold infinity group-list 10
ip pim register-rate-limit 10
ip nat pool IP243 62.33.184.243 62.33.184.243 netmask 255.255.255.240
ip nat pool IP245 62.33.184.245 62.33.184.245 netmask 255.255.255.240
ip nat inside source list NAT pool IP243 overload
ip nat inside source list NATSRV pool IP245 overload
!
ip access-list extended NAT
permit ip host 10.1.1.10 any
!
ip access-list extended NATSRV
permit ip host 10.1.1.1 any
!
access-list 10 permit 239.255.0.0 0.0.255.255
access-list 100 permit ip any 10.1.1.0 0.0.0.255
!
route-map MAP permit 10
match ip address 100
set interface Loopback0 GigabitEthernet0/0

Как только прописываю на interface GigabitEthernet0/1
ip pim sparse-mode
получаю:
CPU utilization for five seconds: 54%/52%; one minute: 23%; five minutes: 13%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
105 1422384 3209666 443 0.98% 4.82% 4.79% 0 IP Input
171 3788 3776538 1 0.57% 0.48% 0.44% 0 HQF Shaper Backg
3 880 433 2032 0.32% 0.13% 0.03% 514 SSH Process
219 12 358 33 0.16% 0.04% 0.01% 0 PIM Process
2 2444 3111 785 0.08% 0.06% 0.06% 0 Load Meter
145 428 6590 64 0.08% 0.00% 0.00% 0 TCP Timer
291 660 477598 1 0.08% 0.05% 0.06% 0 RADIUS
42 672 15485 43 0.08% 0.03% 0.02% 0 Per-Second Jobs
62 136 61590 2 0.08% 0.00% 0.00% 0 Netclock Backgro
292 1644 30166 54 0.08% 0.02% 0.00% 0 IP NAT Ager
139 260 23162 11 0.08% 0.02% 0.00% 0 CEF: IPv4 proces
104 512 477702 1 0.08% 0.07% 0.08% 0 IP ARP Retry Age
98 572 477703 1 0.08% 0.04% 0.06% 0 ACCT Periodic Pr
172 360 153384 2 0.08% 0.03% 0.02% 0 RBSCP Background
294 48 15389 3 0.08% 0.01% 0.00% 0 IP VFR proc
16 0 1 0 0.00% 0.00% 0.00% 0 OIR Handler
15 0 1 0 0.00% 0.00% 0.00% 0 IPC BackPressure
18 56 522 107 0.00% 0.00% 0.00% 0 Environmental mo

C2821-NO#sh int gig 0/1
GigabitEthernet0/1 is up, line protocol is up
Hardware is MV96340 Ethernet, address is 001d.46e6.99f9 (bia 001d.46e6.99f9)
Description: $ETH-WAN$
Internet address is 62.33.184.243/28
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 2/255, rxload 194/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is T
output flow-control is XON, input flow-control is XON
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/350653/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 76285000 bits/sec, 11824 packets/sec
5 minute output rate 866000 bits/sec, 56 packets/sec
55093330 packets input, 1184020987 bytes, 20 no buffer
Received 2504571 broadcasts, 28 runts, 0 giants, 21710 throttles
2766634 input errors, 124 CRC, 1 frame, 0 overrun, 2766481 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
5464087 packets output, 3510273726 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 249 pause output
0 output buffer failures, 0 output buffers swapped out

С2821#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,
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

(*, 239.255.1.17), 00:01:54/00:01:05, RP 0.0.0.0, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null

(*, 239.255.1.16), 00:01:54/00:01:05, RP 0.0.0.0, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
и так далее все мультикаст группы

C2821#sh ip pim autorp
AutoRP Information:
AutoRP is enabled.
AutoRP groups over sparse mode interface is enabled

PIM AutoRP Statistics: Sent/Received
RP Announce: 42/0, RP Discovery: 0/0

C2821-NO#sh ip pim rp
Group: 239.255.1.17, RP: 0.0.0.0
Group: 239.255.1.16, RP: 0.0.0.0
Group: 239.255.1.19, RP: 0.0.0.0
так же далее все мультикаст группы.

C2821#sh ip pim interface

Address Interface Ver/ Nbr Query DR DR
Mode Count Intvl Prior
62.33.184.243 GigabitEthernet0/1 v2/S 1 1 1 192.168.83.1

подскажите плз чего прописать/подправить на 2821 чтобы она так не грузилась и не тянула все мультикаст группы сразу, а только по запросу, ну и как по это подстроить к С3750 в пределах одного vlana