3Com MSR 50, MSR 30 manual Peer sa-policy, From the Msdp peer, Import-source command

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Description	Use the peer sa-cache-maximumcommand to configure the maximum
	number of SA messages that the device can cache.
	Use the undo peer sa-cache-maximumcommand to restore the default
	setting.
	By default, the device can cache a maximum of 8,192 SA messages.
Related command:	display msdp sa-count,display msdp peer-status, and display msdp brief.
Example	# In the public instance allow the device to cache a maximum of 100 SA messages
	from the MSDP peer 125.10.7.6.
	<Sysname> system-view
	[Sysname] msdp
	[Sysname-msdp] peer 125.10.7.6 sa-cache-maximum 100

peer sa-policy

Syntax	peer peer-addresssa-policy { import export } [ acl acl-number]
	undo peer peer-addresssa-policy { import export }
View	Public instance MSDP view, VPN instance MSDP view
Parameter	import: Specifies to filter SA messages from the specified MSDP peer.
	export: Specifies to filter SA messages forwarded to the specified MSDP peer.
	peer-address: MSDP peer address.
	acl-number: Advanced ACL number, in the range of 3000 to 3999. If you do not
	provide an ACL number, all SA messages carrying (S, G) entries will be filtered off.
Description	Use the peer sa-policycommand to configure a filtering rule for receiving or
	forwarding SA messages.
	Use the undo peer sa-policycommand to restore the default setting.
	By default, SA messages received or to be forwarded are not filtered, namely, all
	SA messages are accepted or forwarded.
	In addition to controlling SA message receiving and forwarding by using this
	command, you can also configure a filtering rule for creating SA messages using
	the import-source command.
Related command:	display msdp peer-statusand import-source.
Example	# Configure a filtering rule in the public instance so that SA messages will be
	forwarded to MSDP peer 125.10.7.6 only if they match ACL 3100.