Схама сети:
Код:
Streamer 10.110.0.40 -> catalyst1 10.110.0.110 -> catalyst2 10.110.0.50 - > DGS-3627G (штук 20)
Приоритет 255 Приоритет 254 Приоритет 1
Все устройства находятся в одном Vlan'е и в одной сети
Catalyst2 видит catalyst1
DGS3627G c IP Игнорирует Cisco BSR роутеры с приоритетами 255 и 254, но выбирает соседний DGS-3627G из-за того, что IP у него больше.
Код:
catalyst1#show ip pim bsr-router
PIMv2 Bootstrap information
BSR address: 10.110.0.110 (?)
Uptime: 4w5d, BSR Priority: 255, Hash mask length: 30
Expires: 00:01:33
This system is a candidate BSR
Candidate BSR address: 10.110.0.50, priority: 254, hash mask length: 30
Candidate RP: 10.110.0.50(Vlan255)
Holdtime 150 seconds
Advertisement interval 60 seconds
Next advertisement in 00:00:26
Candidate RP priority : 10
catalyst1#
Код:
DGS-3627G:admin#show pim rpset
Command: show pim rpset
PIM RP-Set Table
Bootstrap Router: 10.110.0.65
Group Address RP Address Holdtime Expired Time Type
------------------ ------------------ --------- ------------ ------
DGS-3627G:admin#show pim cbsr
Command: show pim cbsr
PIM Candidate-BSR Table
C-BSR Hash Mask Len : 30
C-BSR Bootstrap Period : 60
Interface IP Address Priority
------------ ------------------ -------------
System 10.116.0.204/16 -1 (Disabled)
ubr 10.110.0.63/24 1
user 10.109.24.1/22 -1 (Disabled)
Total Entries: 3
DGS-3627G:admin#
Кусок конфига DGS-3627G
Код:
# PIMSM
666
667 enable pim
668 config pim cbsr hash_masklen 30
669 config pim cbsr bootstrap_period 60
670 config pim register_suppression_time 60
671 config pim register_probe_time 5
672 config pim last_hop_spt_switchover never
673 config pim crp holdtime 150 priority 192
674 config pim crp wildcard_prefix_cnt 0
675 config pim ipif System state disable hello 30 jp_interval 60 mode dm dr_priority 1
676 config pim cbsr ipif System priority -1
677 config pim ipif ubr state enable hello 30 jp_interval 60 mode sm dr_priority 1
678 config pim cbsr ipif ubr priority 1
679 config pim ipif user state enable hello 30 jp_interval 60 mode sm dr_priority 1
680 config pim cbsr ipif user priority -1
кусок конфига Catalyst 3650G
Код:
interface Vlan255
ip address 10.110.0.50 255.255.255.0
ip helper-address 10.110.0.2
ip pim sparse-mode
ip multicast ttl-threshold 64
ip ospf network broadcast
!
Код:
ip pim autorp listener
ip pim spt-threshold infinity
ip pim accept-rp auto-rp
ip pim send-rp-discovery scope 64 interval 30
ip pim bsr-candidate Vlan255 30 254
ip pim rp-candidate Vlan255 priority 10
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