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Filter Policy Configuration Overview
Page 278 7750 SR OS Router Configuration Guide
Filter policies can be applied to specific service types:
• Epipe — Both MAC and IP filters are supported on an Epipe SAP and spoke SDPs.
• VPLS — Both MAC and IP filters are supported on a VPLS SAP.
• IES — Only IP and IPv6 filters are supported on an IES IP interface and spoke SDPs
• VPLS — Both MAC and IP filters are supported on an VPLS SAP and mesh and spoke
SDPs.
• VPRN — Only IP filters are supported on VPRN interface SAPS and spoke SDPs.
Filter policies are applied to the following service entities:
• SAP ingress — IP and MAC filter policies applied on the SAP ingress define the Service
Level Agreement (SLA) enforcement of service packets as they ingress a SAP according
to the filter policy match criteria.
• SAP egress — Filter policies applied on SAP egress define the Service Level Agreement
(SLA) enforcement for service packets as they egress on the SAP according to the filter
policy match criteria.
• Network ingress — IP filter policies are applied to network ingress IP interfaces.
• Network egress — IP filter policies are applied to network egress IP interfaces.
Redirect Policies
Redirect policies define one or more cache server destinations and provides a method to determine
which destination is used. Redirection policies are used to identify cache servers (or other
redirection target destinations) and define health check test methods used to validate the ability for
the destination to receive redirected traffic. This destination monitoring greatly diminishes the
likelihood of a destination receiving packets it cannot process.
Redirection identifies packets to be redirected and specifies the method to reach the web cache
server. Packets are identified by IP filter entries. The redirection action is accomplished and
supported with Policy Based Routing. Only IP routed frames can be redirected. Bridged IP packets
that match the entry criteria will not be redirected.
Ipipe SAP, spoke SDP N/A N/A
VPLS mesh SDP, spoke SDP,
SAP
VPLS mesh SDP, spoke SDP,
SAP
VPLS mesh SDP, spoke SDP,
SAP
VPRN interface SAP, spoke
SDP, subscriber-interface
N/A Subscriber-interface
Table 14: Applying Filter Policies
IP Filter MAC Filter IPv6 Filter