From: ccie anees (ccieanees@yahoo.com)
Date: Tue Apr 03 2007 - 22:21:03 ART
Correct. It is used to elect PIM DR. But I see in Doc CD,
http://www.cisco.com/en/US/products/ps6350/products_configuration_guide_chapter09186a00805a4e8e.html#wp1054079
Steps 3, 5, and 6 in this task are independent of each other and are therefore considered optional. Any one of these steps will help optimize PIM sparse mode. If you are going to perform Step 5 or 6, you must perform Step 4. Step 6 applies only to a designated router; changing the PIM query interval is only appropriate on redundant routers on the edge of the PIM domain.
SUMMARY STEPS 1. enable
2. configure terminal
3. ip pim register-rate-limit rate
4. ip pim spt-threshold {kbps | infinity} [group-list access-list]
5. interface type number
6. ip pim query-interval period [msec]
Why do I need to configure spt-threshold in order to configure pim query-interval?
Thanks,
Anees.
Victor Cappuccio <victor@ccbootcamp.com> wrote:
Hi,
Configures the frequency at which multicast routers send PIM router query
messages.
By default, multicast routers send PIM router query messages every 30 seconds.
By enabling a router to send PIM hello messages more often, the router can
discover unresponsive neighbors more quickly. As a result, the router can
implement failover or recovery procedures more efficiently. It is appropriate
to make this change only on redundant routers on the edge of the network
Perform this step only on redundant routers on the edge of a PIM domain.
The default query interval is 30 seconds.
The period argument is in seconds unless the msec keyword is specified.
Set the query interval to a smaller number of seconds for faster convergence,
but keep in mind the trade-off between faster convergence and higher CPU and
bandwidth usage.
thanks,
Victor Cappuccio.-
Network Learning Inc - A Cisco Sponsored Organization (SO) YES! We take
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victor@ccbootcamp.com
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-----Original Message-----
From: nobody@groupstudy.com on behalf of ccie anees
Sent: Tue 4/3/2007 12:54
To: ccielab@groupstudy.com
Subject: PIM Query-interval
Hi,
What is PIM Query-interval? Is it to query the PIM Neighbor router? Is it
like PIM hello messages?
And the doc cd says You need to enable ip pim spt-threshold <> in order to
configure ip pim query-interval <>? Is it true?
Thanks,
Anees.
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This archive was generated by hypermail 2.1.4 : Tue May 01 2007 - 08:28:34 ART