HP 6125G HP 6125G & 6125G/XG Blade Switches IP Multicast Configuration - Page 316
Configuring C-RP timers globally, Configuring a BSR, Configuring IPv6 PIM, common timers
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Step Command 3. Enable embedded RP. embedded-rp [ acl6-number ] Remarks Optional. By default, embedded RP is enabled for IPv6 multicast groups in the default embedded RP address scopes. The default embedded RP address scopes are FF7x::/12 and FFFx::/12. Here "x" refers to any legal address scope. For more information about the Scope field, see "Multicast overview." Configuring C-RP timers globally To enable the BSR to distribute the RP-set information within the IPv6 PIM-SM domain, C-RPs must periodically send C-RP-Adv messages to the BSR. The BSR obtains the RP-set information from the received messages, and encapsulates its own IPv6 address together with the RP-set information in its bootstrap messages. The BSR then floods the bootstrap messages to all IPv6 routers in the network. Each C-RP encapsulates a timeout value in its C-RP-Adv messages. After receiving a C-RP-Adv message, the BSR obtains this timeout value and starts a C-RP timeout timer. If the BSR fails to obtain a subsequent C-RP-Adv message from the C-RP when the timer times out, the BSR assumes the C-RP to have expired or become unreachable. You must configure the C-RP timers on C-RP routers. To configure C-RP timers globally: Step 1. Enter system view. 2. Enter IPv6 PIM view. 3. Configure the C-RP-Adv interval. 4. Configure C-RP timeout time. Command Remarks system-view N/A pim ipv6 N/A Optional. c-rp advertisement-interval interval 60 seconds by default. c-rp holdtime interval Optional. 150 seconds by default. For more information about the configuration of other timers in IPv6 PIM-SM, see "Configuring IPv6 PIM common timers." Configuring a BSR An IPv6 PIM-SM domain can have only one BSR, but must have at least one C-BSR. Any router can be configured as a C-BSR. Elected from C-BSRs, the BSR is responsible for collecting and advertising RP information in the IPv6 PIM-SM domain. Configuring a C-BSR You should configure C-BSRs on routers in the backbone network. When you configure a router as a C-BSR, be sure to specify the IPv6 address of an IPv6 PIM-SM-enabled interface on the router. The BSR election process is as follows: 3. Initially, every C-BSR assumes itself to be the BSR of this IPv6 PIM-SM domain and uses its interface IPv6 address as the BSR address to send bootstrap messages. 305
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