Configuring Sa Messages Related Parameters; Configuration Prerequisites; Configuring Sa Message Content - HP A5500 SI Switch Series Configuration Manual

When you reactivate a previously deactivated MSDP peer connection
•
When a previously failed MSDP peer attempts to resume operation
•
You can adjust the interval between MSDP peer connection retries.
Follow these steps to configure MSDP peer connection control:
To do...
Enter system view
Enter public network MSDP view
or VPN instance MSDP view
Deactivate an MSDP peer
Configure the interval between
MSDP peer connection retries

Configuring SA messages related parameters

Configuration prerequisites

Before you configure SA message delivery, complete the following tasks:
Configure any unicast routing protocol so that all devices in the domain are interoperable at the
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network layer
Configure basic functions of MSDP
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Determine the ACL rules for filtering SA request messages
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Determine the ACL rules as SA message creation rules
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Determine the ACL rules for filtering SA messages to be received and forwarded
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Determine the TTL threshold for multicast packet encapsulation in SA messages
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Determine the maximum number of (S, G) entries learned from the specified MSDP peer that the
•
router can cache

Configuring SA message content

Some multicast sources send multicast data at an interval longer than the aging time of (S, G) entries. In
this case, the source-side DR must encapsulate multicast data packet by packet in register messages and
send them to the source-side RP. The source-side RP transmits the (S, G) information to the remote RP
through SA messages. Then the remote RP joins the source-side DR and builds an SPT. Because the (S,
G) entries have timed out, remote receivers can never receive the multicast data from the multicast
source.
If the source-side RP is enabled to encapsulate register messages in SA messages, when there is a
multicast packet to deliver, the source-side RP encapsulates a register message that contains the multicast
packet in an SA message and sends it out. After the remote RP receives the SA message, it de-
encapsulates the SA message and delivers the multicast data contained in the register message to the
receivers along the RPT.
Use the command...
system-view
msdp [ vpn-instance vpn-instance-
name ]
shutdown peer-address
timer retry interval
199
Remarks
—
—
Optional
Active by default
Optional
30 seconds by default