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Table of Contents
- play_arrow Understanding and Configuring Junos Routing Policies
- play_arrow Overview
- Policy Framework Overview
- Comparison of Routing Policies and Firewall Filters
- Prefix Prioritization Overview
- FIB Prefix Prioritization
- Accounting of the Policer Overhead Attribute at the Interface Level
- Configuring the Accounting of Policer Overhead in Interface Statistics
- Understanding Routing Policies
- Protocol Support for Import and Export Policies
- Example: Applying Routing Policies at Different Levels of the BGP Hierarchy
- Default Routing Policies
- Example: Configuring a Conditional Default Route Policy
- play_arrow Evaluating Routing Policies Using Match Conditions, Actions, Terms, and Expressions
- How a Routing Policy Is Evaluated
- Categories of Routing Policy Match Conditions
- Routing Policy Match Conditions
- Route Filter Match Conditions
- Actions in Routing Policy Terms
- Summary of Routing Policy Actions
- Example: Configuring a Routing Policy to Advertise the Best External Route to Internal Peers
- Example: Configuring BGP to Advertise Inactive Routes
- Example: Using Routing Policy to Set a Preference Value for BGP Routes
- Example: Enabling BGP Route Advertisements
- Example: Rejecting Known Invalid Routes
- Example: Using Routing Policy in an ISP Network
- Understanding Policy Expressions
- Understanding Backup Selection Policy for OSPF Protocol
- Configuring Backup Selection Policy for the OSPF Protocol
- Configuring Backup Selection Policy for IS-IS Protocol
- Example: Configuring Backup Selection Policy for the OSPF or OSPF3 Protocol
- play_arrow Evaluating Complex Cases Using Policy Chains and Subroutines
- play_arrow Configuring Route Filters and Prefix Lists as Match Conditions
- Understanding Route Filters for Use in Routing Policy Match Conditions
- Understanding Route Filter and Source Address Filter Lists for Use in Routing Policy Match Conditions
- Understanding Load Balancing Using Source or Destination IP Only
- Configuring Load Balancing Using Source or Destination IP Only
- Walkup for Route Filters Overview
- Configuring Walkup for Route Filters to Improve Operational Efficiency
- Example: Configuring Route Filter Lists
- Example: Configuring Walkup for Route Filters Globally to Improve Operational Efficiency
- Example: Configuring Walkup for Route Filters Locally to Improve Operational Efficiency
- Example: Configuring a Route Filter Policy to Specify Priority for Prefixes Learned Through OSPF
- Example: Configuring the MED Using Route Filters
- Example: Configuring Layer 3 VPN Protocol Family Qualifiers for Route Filters
- Understanding Prefix Lists for Use in Routing Policy Match Conditions
- Example: Configuring Routing Policy Prefix Lists
- Example: Configuring the Priority for Route Prefixes in the RPD Infrastructure
- Configuring Priority for Route Prefixes in RPD Infrastructure
- play_arrow Configuring AS Paths as Match Conditions
- Understanding AS Path Regular Expressions for Use as Routing Policy Match Conditions
- Example: Using AS Path Regular Expressions
- Understanding Prepending AS Numbers to BGP AS Paths
- Example: Configuring a Routing Policy for AS Path Prepending
- Understanding Adding AS Numbers to BGP AS Paths
- Example: Advertising Multiple Paths in BGP
- Improve the Performance of AS Path Lookup in BGP Policy
- play_arrow Configuring Communities as Match Conditions
- Understanding BGP Communities, Extended Communities, and Large Communities as Routing Policy Match Conditions
- Understanding How to Define BGP Communities and Extended Communities
- How BGP Communities and Extended Communities Are Evaluated in Routing Policy Match Conditions
- Example: Configuring Communities in a Routing Policy
- Example: Configuring Extended Communities in a Routing Policy
- Example: Configuring BGP Large Communities
- Example: Configuring a Routing Policy Based on the Number of BGP Communities
- Example: Configuring a Routing Policy That Removes BGP Communities
- play_arrow Increasing Network Stability with BGP Route Flapping Actions
- play_arrow Tracking Traffic Usage with Source Class Usage and Destination Class Usage Actions
- Understanding Source Class Usage and Destination Class Usage Options
- Source Class Usage Overview
- Guidelines for Configuring SCU
- System Requirements for SCU
- Terms and Acronyms for SCU
- Roadmap for Configuring SCU
- Roadmap for Configuring SCU with Layer 3 VPNs
- Configuring Route Filters and Source Classes in a Routing Policy
- Applying the Policy to the Forwarding Table
- Enabling Accounting on Inbound and Outbound Interfaces
- Configuring Input SCU on the vt Interface of the Egress PE Router
- Mapping the SCU-Enabled vt Interface to the VRF Instance
- Configuring SCU on the Output Interface
- Associating an Accounting Profile with SCU Classes
- Verifying Your SCU Accounting Profile
- SCU Configuration
- SCU with Layer 3 VPNs Configuration
- Example: Grouping Source and Destination Prefixes into a Forwarding Class
- play_arrow Avoiding Traffic Routing Threats with Conditional Routing Policies
- Conditional Advertisement and Import Policy (Routing Table) with certain match conditions
- Conditional Advertisement Enabling Conditional Installation of Prefixes Use Cases
- Example: Configuring a Routing Policy for Conditional Advertisement Enabling Conditional Installation of Prefixes in a Routing Table
- play_arrow Protecting Against DoS Attacks by Forwarding Traffic to the Discard Interface
- play_arrow Improving Commit Times with Dynamic Routing Policies
- play_arrow Testing Before Applying Routing Policies
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- play_arrow Configuring Firewall Filters
- play_arrow Understanding How Firewall Filters Protect Your Network
- Firewall Filters Overview
- Router Data Flow Overview
- Stateless Firewall Filter Overview
- Understanding How to Use Standard Firewall Filters
- Understanding How Firewall Filters Control Packet Flows
- Stateless Firewall Filter Components
- Stateless Firewall Filter Application Points
- How Standard Firewall Filters Evaluate Packets
- Understanding Firewall Filter Fast Lookup Filter
- Understanding Egress Firewall Filters with PVLANs
- Selective Class-based Filtering on PTX Routers
- Guidelines for Configuring Firewall Filters
- Guidelines for Applying Standard Firewall Filters
- Supported Standards for Filtering
- Monitoring Firewall Filter Traffic
- Troubleshooting Firewall Filters
- play_arrow Firewall Filter Match Conditions and Actions
- Overview of Firewall Filters (OCX Series)
- Overview of Firewall Filter Profiles on ACX Series Routers (Junos OS Evolved)
- Understanding Firewall Filter Match Conditions
- Understanding Firewall Filter Planning
- Understanding How Firewall Filters Are Evaluated
- Understanding Firewall Filter Match Conditions
- Firewall Filter Flexible Match Conditions
- Firewall Filter Nonterminating Actions
- Firewall Filter Terminating Actions
- Firewall Filter Match Conditions and Actions (ACX Series Routers)
- Firewall Filter Match Conditions and Actions in ACX Series Routers (Junos OS Evolved)
- Firewall Filter Match Conditions for Protocol-Independent Traffic
- Firewall Filter Match Conditions for IPv4 Traffic
- Firewall Filter Match Conditions for IPv6 Traffic
- Firewall Filter Match Conditions Based on Numbers or Text Aliases
- Firewall Filter Match Conditions Based on Bit-Field Values
- Firewall Filter Match Conditions Based on Address Fields
- Firewall Filter Match Conditions Based on Address Classes
- Understanding IP-Based Filtering and Selective Port Mirroring of MPLS Traffic
- Firewall Filter Match Conditions for MPLS Traffic
- Firewall Filter Match Conditions for MPLS-Tagged IPv4 or IPv6 Traffic
- Firewall Filter Match Conditions for VPLS Traffic
- Firewall Filter Match Conditions for Layer 2 CCC Traffic
- Firewall Filter Match Conditions for Layer 2 Bridging Traffic
- Firewall Filter Support on Loopback Interface
- play_arrow Applying Firewall Filters to Routing Engine Traffic
- Configuring Logical Units on the Loopback Interface for Routing Instances in Layer 3 VPNs
- Example: Configuring a Filter to Limit TCP Access to a Port Based On a Prefix List
- Example: Configuring a Stateless Firewall Filter to Accept Traffic from Trusted Sources
- Example: Configure a Filter to Block Telnet and SSH Access
- Example: Configuring a Filter to Block TFTP Access
- Example: Configuring a Filter to Accept Packets Based on IPv6 TCP Flags
- Example: Configuring a Filter to Block TCP Access to a Port Except from Specified BGP Peers
- Example: Configuring a Stateless Firewall Filter to Protect Against TCP and ICMP Floods
- Example: Protecting the Routing Engine with a Packets-Per-Second Rate Limiting Filter
- Example: Configuring a Filter to Exclude DHCPv6 and ICMPv6 Control Traffic for LAC Subscriber
- Port Number Requirements for DHCP Firewall Filters
- Example: Configuring a DHCP Firewall Filter to Protect the Routing Engine
- play_arrow Applying Firewall Filters to Transit Traffic
- Example: Configuring a Filter for Use as an Ingress Queuing Filter
- Example: Configuring a Filter to Match on IPv6 Flags
- Example: Configuring a Filter to Match on Port and Protocol Fields
- Example: Configuring a Filter to Count Accepted and Rejected Packets
- Example: Configuring a Filter to Count and Discard IP Options Packets
- Example: Configuring a Filter to Count IP Options Packets
- Example: Configuring a Filter to Count and Sample Accepted Packets
- Example: Configuring a Filter to Set the DSCP Bit to Zero
- Example: Configuring a Filter to Set the DSCP Bit to Zero
- Example: Configuring a Filter to Match on Two Unrelated Criteria
- Example: Configuring a Filter to Accept DHCP Packets Based on Address
- Example: Configuring a Filter to Accept OSPF Packets from a Prefix
- Example: Configuring a Stateless Firewall Filter to Handle Fragments
- Configuring a Firewall Filter to Prevent or Allow IPv4 Packet Fragmentation
- Configuring a Firewall Filter to Discard Ingress IPv6 Packets with a Mobility Extension Header
- Example: Configuring an Egress Filter Based on IPv6 Source or Destination IP Addresses
- Example: Configuring a Rate-Limiting Filter Based on Destination Class
- play_arrow Configuring Firewall Filters in Logical Systems
- Firewall Filters in Logical Systems Overview
- Guidelines for Configuring and Applying Firewall Filters in Logical Systems
- References from a Firewall Filter in a Logical System to Subordinate Objects
- References from a Firewall Filter in a Logical System to Nonfirewall Objects
- References from a Nonfirewall Object in a Logical System to a Firewall Filter
- Example: Configuring Filter-Based Forwarding
- Example: Configuring Filter-Based Forwarding on Logical Systems
- Example: Configuring a Stateless Firewall Filter to Protect a Logical System Against ICMP Floods
- Example: Configuring a Stateless Firewall Filter to Protect a Logical System Against ICMP Floods
- Unsupported Firewall Filter Statements for Logical Systems
- Unsupported Actions for Firewall Filters in Logical Systems
- Filter-Based Forwarding for Routing Instances
- Forwarding Table Filters for Routing Instances on ACX Series Routers
- Configuring Forwarding Table Filters
- play_arrow Configuring Firewall Filter Accounting and Logging
- play_arrow Attaching Multiple Firewall Filters to a Single Interface
- Applying Firewall Filters to Interfaces
- Configuring Firewall Filters
- Multifield Classifier Example: Configuring Multifield Classification
- Multifield Classifier for Ingress Queuing on MX Series Routers with MPC
- Assigning Multifield Classifiers in Firewall Filters to Specify Packet-Forwarding Behavior (CLI Procedure)
- Understanding Multiple Firewall Filters in a Nested Configuration
- Guidelines for Nesting References to Multiple Firewall Filters
- Understanding Multiple Firewall Filters Applied as a List
- Guidelines for Applying Multiple Firewall Filters as a List
- Example: Applying Lists of Multiple Firewall Filters
- Example: Nesting References to Multiple Firewall Filters
- Example: Filtering Packets Received on an Interface Set
- play_arrow Attaching a Single Firewall Filter to Multiple Interfaces
- Interface-Specific Firewall Filter Instances Overview
- Interface-Specific Firewall Filter Instances Overview
- Filtering Packets Received on a Set of Interface Groups Overview
- Filtering Packets Received on an Interface Set Overview
- Example: Configuring Interface-Specific Firewall Filter Counters
- Example: Configuring a Stateless Firewall Filter on an Interface Group
- play_arrow Configuring Filter-Based Tunneling Across IP Networks
- Understanding Filter-Based Tunneling Across IPv4 Networks
- Firewall Filter-Based L2TP Tunneling in IPv4 Networks Overview
- Interfaces That Support Filter-Based Tunneling Across IPv4 Networks
- Components of Filter-Based Tunneling Across IPv4 Networks
- Example: Transporting IPv6 Traffic Across IPv4 Using Filter-Based Tunneling
- play_arrow Configuring Service Filters
- Service Filter Overview
- How Service Filters Evaluate Packets
- Guidelines for Configuring Service Filters
- Guidelines for Applying Service Filters
- Example: Configuring and Applying Service Filters
- Service Filter Match Conditions for IPv4 or IPv6 Traffic
- Service Filter Nonterminating Actions
- Service Filter Terminating Actions
- play_arrow Configuring Simple Filters
- play_arrow Configuring Layer 2 Firewall Filters
- Understanding Firewall Filters Used to Control Traffic Within Bridge Domains and VPLS Instances
- Example: Configuring Filtering of Frames by MAC Address
- Example: Configuring Filtering of Frames by IEEE 802.1p Bits
- Example: Configuring Filtering of Frames by Packet Loss Priority
- Example: Configuring Policing and Marking of Traffic Entering a VPLS Core
- Understanding Firewall Filters on OVSDB-Managed Interfaces
- Example: Applying a Firewall Filter to OVSDB-Managed Interfaces
- play_arrow Configuring Firewall Filters for Forwarding, Fragments, and Policing
- Filter-Based Forwarding Overview
- Firewall Filters That Handle Fragmented Packets Overview
- Stateless Firewall Filters That Reference Policers Overview
- Example: Configuring Filter-Based Forwarding on the Source Address
- Example: Configuring Filter-Based Forwarding to a Specific Outgoing Interface or Destination IP Address
- play_arrow Configuring Firewall Filters (EX Series Switches)
- Firewall Filters for EX Series Switches Overview
- Understanding Planning of Firewall Filters
- Understanding Firewall Filter Match Conditions
- Understanding How Firewall Filters Control Packet Flows
- Understanding How Firewall Filters Are Evaluated
- Understanding Firewall Filter Processing Points for Bridged and Routed Packets on EX Series Switches
- Firewall Filter Match Conditions, Actions, and Action Modifiers for EX Series Switches
- Platform Support for Firewall Filter Match Conditions, Actions, and Action Modifiers on EX Series Switches
- Support for Match Conditions and Actions for Loopback Firewall Filters on Switches
- Configuring Firewall Filters (CLI Procedure)
- Understanding How Firewall Filters Test a Packet's Protocol
- Understanding Filter-Based Forwarding for EX Series Switches
- Example: Configuring Firewall Filters for Port, VLAN, and Router Traffic on EX Series Switches
- Example: Configuring a Firewall Filter on a Management Interface on an EX Series Switch
- Example: Using Filter-Based Forwarding to Route Application Traffic to a Security Device
- Example: Applying Firewall Filters to Multiple Supplicants on Interfaces Enabled for 802.1X or MAC RADIUS Authentication
- Verifying That Policers Are Operational
- Troubleshooting Firewall Filters
- play_arrow Configuring Firewall Filters (QFX Series Switches, EX4600 Switches, PTX Series Routers)
- Overview of Firewall Filters (QFX Series)
- Understanding Firewall Filter Planning
- Planning the Number of Firewall Filters to Create
- Firewall Filter Match Conditions and Actions (QFX and EX Series Switches)
- Firewall Filter Match Conditions and Actions (QFX10000 Switches)
- Firewall Filter Match Conditions and Actions (PTX Series Routers)
- Firewall and Policing Differences Between PTX Series Packet Transport Routers and T Series Matrix Routers
- Configuring Firewall Filters
- Applying Firewall Filters to Interfaces
- Overview of MPLS Firewall Filters on Loopback Interface
- Configuring MPLS Firewall Filters and Policers on Switches
- Configuring MPLS Firewall Filters and Policers on Routers
- Configuring MPLS Firewall Filters and Policers
- Understanding How a Firewall Filter Tests a Protocol
- Understanding Firewall Filter Processing Points for Bridged and Routed Packets
- Understanding Filter-Based Forwarding
- Example: Using Filter-Based Forwarding to Route Application Traffic to a Security Device
- Configuring a Firewall Filter to De-Encapsulate GRE or IPIP Traffic
- Verifying That Firewall Filters Are Operational
- Monitoring Firewall Filter Traffic
- Troubleshooting Firewall Filter Configuration
- play_arrow Configuring Firewall Filter Accounting and Logging (EX9200 Switches)
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- play_arrow Configuration Statements and Operational Commands
- play_arrow Troubleshooting
- play_arrow Knowledge Base
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list Table of Contents
Using Variables for Layer 2 Traffic Policing at the Pseudowire Overview
date_range
24-Nov-23
To reduce the number of dynamic profiles needed to police traffic at the core, you can use a variable for the output policer in your dynamic profiles. The variable that you define is called junos-layer2-output-policer. The variable is a placeholder that gets filled in when the dynamic profile obtains the value from the routing instance.
To use variables for policers for Layer 2 pseudowires:
Create policers.
Create a dynamic profile and add a profile variable set to the dynamic profile.
In the profile variable set, assign a value to the junos-layer2-output-policer variable. This value is the name of one of your policers.
In the dynamic profile interface configuration at the
[edit dynamic-profiles profile-name interfaces "$junos-interface-ifd-name" unit "$junos-underlying-interface-unit"]hierarchy, assign junos-layer2-output-policer as one of your Layer 2 policers.When you attach the dynamic profile to a routing instance, assign the profile variable set that you configured in the dynamic profile as the associate-profile value.
Attach the dynamic profile and the profile variable set to the routing instance.
