NOTE: If the chassis is running in Enhanced IP mode, a single shared filter
instance is created for a filter applied across bridge domains. However, if the
chassis is not running in Enhanced IP mode, then separate filter instances
are created for each bridge domain that the filter is applied to.
Related
Documentation
Layer 2 Firewall Filters•
• Example: Configuring Policing and Marking of Traffic Entering a VPLS Core on page 96
• Example: Configuring Filtering of Frames by MAC Address on page 98
• Example: Configuring Filtering of Frames by IEEE 802.1p Bits on page 99
• Example: Configuring Filtering of Frames by Packet Loss Priority on page 101
Example: Configuring Policing and Marking of Traffic Entering a VPLS Core
This example firewall filter allows a service provider to limit the aggregate broadcast
traffic entering the virtual private LAN service (VPLS) core. The broadcast, unknown
unicast, and non-IP multicast traffic received from one of the service provider’s customers
on a logical interface has a policer applied. The service provider has also configured a
two-rate, three-color policer to limit the customer’s IP multicast traffic. For more
information on the configuration of policers, see the Junos OS Class of Service Configuration
Guide.
The position of the router is shown in Figure 14 on page 96.
Figure 14: Policing and Marking Traffic Entering a VPLS Core
There are four major parts to the configuration:
•
The policer for broadcast, unknown unicast, and non-IP multicast traffic. This example
marks the loss priority as high if this type of traffic exceeds 50 Kbps.
•
The two-rate, three-color policer for IP multicast traffic. This example configures a
committed information rate (CIR) of 4 Mbps, a committed burst size of 256 Kbytes, a
peak information rate of 4.1 Mbps, and a peak burst size of 256 Kbytes (the same as
the CIR).
•
The filter that applies the two policers to VPLS.
•
The application of the filter to the customer interface configuration as an input filter.
Copyright © 2012, Juniper Networks, Inc.96
Junos OS 12.1 MX Series 3D Universal Edge Routers Solutions Guide
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