QoS: Policing Support for GRE Tunnels
|
|
|
- Hollie Greene
- 6 years ago
- Views:
Transcription
1 QoS: Policing Support for GRE Tunnels The Qos - Policing Support for GRE Tunnels feature allows you to set the Differentiated Services Code Point (DSCP) and IP precedence values on Generic Routing Encapsulation (GRE) tunnel packets. This feature is essential for MPLS carriers to offer QoS on Multicast VPN services. MVPN uses GRE tunnels between PE devices, and multicast packets are placed in GRE tunnels for transmission across the MPLS core network. The Qos - policing SUPPORT for GRE Tunnels feature allows users to configure QoS for the GRE tunnel packets. Once the GRE packets accurately reflect the QoS markings of the underlying multicast packets, they may be queued accordingly as they travel across the core nodes. History for the Qos - Policing Support for GRE Tunnels Feature Release Release 12.2(31)SB Modification This feature was introduced and implemented on the Cisco series router. Finding Support Information for Platforms and Cisco IOS Software Images Use Cisco Feature Navigator to find information about platform support and Cisco IOS software image support. Access Cisco Feature Navigator at You must have an account on Cisco.com. If you do not have an account or have forgotten your username or password, click Cancel at the login dialog box and follow the instructions that appear. Contents Restrictions for Qos - Policing Support for GRE Tunnels, page 2 Information About Qos - Policing Support for GRE Tunnels, page 2 How to Configure Qos - Policing Support for GRE Tunnels, page 3 Additional References, page 4 Additional References, page 4 Americas Headquarters: Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA USA
2 Restrictions for Qos - Policing Support for GRE Tunnels QoS: Policing Support for GRE Tunnels Restrictions for Qos - Policing Support for GRE Tunnels Service policies with GRE tunnel header marking actions can only be attached to the ingress interfaces. There is no direct means of marking the inner IP header that arrives in a tunnel (aka tunnel decapsulation or tunnel receive). The Cisco Series router supports only one police action. Information About Qos - Policing Support for GRE Tunnels Table 1 shows how the various tunnel-specific marking functions interact with one another. Table 1 Priority of Tunnel-Marking Commands Command 1) Policing commands: set dcsp tunnel transmit or set precedence tunnel transmit 2) Input QoS set actions: Action Seen In Outer IP header The police values supersede all other marking values. Changes the 6-bit dscp value in the outer IP header s ToS byte. Changes the 3-bit precedence value in the outer IP header s ToS byte. set ip dcsp tunnel value or set ip precedence tunnel value Changes the 6-bit dscp value in the outer IP header s ToS byte. Changes the 3-bit precedence value in the outer IP header s ToS byte 3) tunnel tos value Changes the entire ToS byte in outer IP header. 4) Default action is: ToS reflection Copy the entire ToS byte from the inner IP header into the outer IP header. The policing commands are logically applied last and thus have the highest priority. This means that the value associated with the set ip [dscp precedence] tunnel transmit command, when applied, will always show up in the outer IP header's ToS byte. The set ip [dscp precedence] tunnel transmit command value that is specified will supersede the tunnel tos value and any default tunnel action. The tunnel tos value command overrides any default tunnel marking action. If the input QoS action uses a dcsp value and the police action specifies a precedence value, only the police action bits will be changed. The bits associated with the input QoS actions dscp value will be ignored. 2
3 QoS: Policing Support for GRE Tunnels How to Configure Qos - Policing Support for GRE Tunnels How to Configure Qos - Policing Support for GRE Tunnels To configure Qos - Policing Support for GRE Tunnels, perform the following configuration tasks: SUMMARY STEPS 1. enable 2. configure terminal 3. class-map class-map-name 4. match fr-de 5. exit 6. policy-map name 7. class map-class 8. police bps conform-action action 9. end DETAILED STEPS Step 1 Step 2 Command or Action enable Router> enable configure terminal Purpose Enables privileged EXEC mode. Enter your password if prompted. Enters global configuration mode. Step 3 Step 4 Step 5 Router# configure terminal class-map class-map-name Router (config)# class-map MATCH_FRDE match fr-de Router (config-cmap)# match fr-de exit Creates a class map to be used for matching packets to a specified class. Matches packets with the Frame Relay discard eligibility (DE) bit set. Exits class-map configuration mode. Step 6 Router (config-cmap)# exit policy-map name Router (config)# policy-map TUNNEL_MARKING Configures a policy, i.e., an association of a traffic class with one or more security-related actions. 3
4 Additional References QoS: Policing Support for GRE Tunnels Step 7 Command or Action class map-class Purpose Associates the map class with the protocol. Step 8 Router (config-pmap)# class MATCH_FRDE police bps conform-action action Configures traffic policing. Step 9 Router (config-pmap-c)# police 8000 conform-action set-dscp-tunnel-transmit end Exit policy map configuration mode. Router (config-pmap-c)# end Additional References The following sections provide references related to Policing Support for GRE Tunnels. 4
5 QoS: Policing Support for GRE Tunnels Related Documents Related Topic Quality of Service on GRE Tunnel Interfaces Document Title Tech Note: Quality of Service Options on GRE Tunnel Interfaces at note09186a e.shtml Standards Standard No new or modified standards are supported by this feature, and support for existing standards has not been modified by this feature. Title MIBs MIB No new or modified MIBs are supported by this feature, and support for existing MIBs has not been modified by this feature. MIBs Link To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL: Technical Assistance Description The Cisco Technical Support & Documentation website contains thousands of pages of searchable technical content, including links to products, technologies, solutions, technical tips, and tools. Registered Cisco.com users can log in from this page to access even more content. Link 5
6 6 QoS: Policing Support for GRE Tunnels
QoS Tunnel Marking for GRE Tunnels
The feature introduces the capability to define and control the quality of service (QoS) for both incoming and outgoing customer traffic on the provider edge (PE) router in a service provider network.
QoS: Child Service Policy for Priority Class
QoS: Child Service Policy for Priority Class First Published: November, 2006 The QoS: Child Service Policy for Priority Class feature allows you to configure a child service policy with nonqueuing-based
EVC Quality of Service
First Published: March 28, 2011 Last Updated: March 28, 2011 This document contains information about how to enable quality of service (QoS) features (such as traffic classification and traffic policing)
QoS: Time-Based Thresholds for WRED and Queue Limit
QoS: Time-Based Thresholds for WRED and Queue Limit The QoS: Time-Based Thresholds for WRED and Queue Limit feature allows you to specify the Weighted Random Early Detection (WRED) minimum and maximum
QoS: Per-Session Shaping and Queuing on LNS
QoS: Per-Session Shaping and Queuing on LNS First Published: February 28, 2006 The QoS: Per-Session Shaping and Queuing on LNS feature provides the ability to shape (for example, transmit or drop) or queue
Classifying Network Traffic
Classifying Network Traffic Last Updated: December 2, 2011 Classifying network traffic allows you to organize traffic (that is, packets) into traffic classes or categories on the basis of whether the traffic
Classifying and Marking MPLS EXP
The QoS EXP Matching feature allows you to classify and mark network traffic by modifying the Multiprotocol Label Switching (MPLS) experimental bits (EXP) field in IP packets. This module contains conceptual
Set Inner CoS Bits for QinQ
Set Inner CoS Bits for QinQ First Published: September 2007 Revised: August 2008 This document describes the Set Inner CoS Bits for QinQ feature that allows you to mark both inner and outer VLAN tags of
Packet Classification Using the Frame Relay DLCI Number
Packet Classification Using the Frame Relay DLCI Number The Packet Classification Using the Frame Relay DLCI Number feature allows customers to match and classify traffic on the basis of one or more Frame
Classifying Network Traffic
Classifying Network Traffic Last Updated: December 8, 2011 Classifying network traffic allows you to organize traffic (that is, packets) into traffic classes or categories on the basis of whether the traffic
QoS Child Service Policy for Priority Class
First Published: November, 2006 The feature allows you to configure a child service policy with nonqueuing-based features and attach the child policy to a class. History of Release 12.2(31)SB2 Modification
Generic Routing Encapsulation Tunnel IP Source and Destination VRF Membership
Generic Routing Encapsulation Tunnel IP Source and Destination VRF Membership Last Updated: April, 2007 The feature allows you to configure the source and destination of a tunnel to belong to any virtual
QoS: Match on ATM CLP
QoS: Match on ATM CLP First Published: May 7, 2004 Last Updated: February 28, 2006 The QoS: Match on ATM CLP feature allows you to match and classify packets arriving at an interface on the basis of the
Marking Network Traffic
Marking network traffic allows you to set or modify the attributes for traffic (that is, packets) belonging to a specific class or category. When used in conjunction with network traffic classification,
Marking Network Traffic
Marking network traffic allows you to set or modify the attributes for traffic (that is, packets) belonging to a specific class or category. When used in conjunction with network traffic classification,
QoS: Child Service Policy for Priority Class
QoS: Child Service Policy for Priority Class First Published: November, 2006 Last Updated: March 2, 2009 The QoS: Child Service Policy for Priority Class feature allows you to configure a child service
BECN and FECN Marking for Frame Relay over MPLS
BECN and FECN Marking for Frame Relay over MPLS First Published: August 26, 2003 Last Updated: February, 2006 This feature explains how to configure backward explicit congestion notification (BECN) and
EVC Quality of Service
This document contains information about how to enable quality of service (QoS) features (such as traffic classification and traffic policing) for use on an Ethernet virtual circuit (EVC). An EVC as defined
Configurable Queue Depth
This feature allows you to configure (resize) the depth of the packet queues on your network. That is, you can set the maximum number (the depth) of packets that a class queue can hold, which in turn controls
QoS: Color-Aware Policer
QoS: Color-Aware Policer The QoS: Color-Aware Policer enables a color-aware method of traffic policing. This feature allows you to police traffic according to the color classification of a packet. The
Protocol-Independent MAC ACL Filtering on the Cisco Series Internet Router
Protocol-Independent MAC ACL Filtering on the Cisco 12000 Series Internet Router Part Number OL-142368-01 (Rev A0), January 19, 2006 The Protocol-Independent MAC ACL Filtering feature allows you to create
RSVP Support for RTP Header Compression, Phase 1
RSVP Support for RTP Header Compression, Phase 1 The Resource Reservation Protocol (RSVP) Support for Real-Time Transport Protocol (RTP) Header Compression, Phase 1 feature provides a method for decreasing
MQC Hierarchical Queuing with 3 Level Scheduler
MQC Hierarchical Queuing with 3 Level Scheduler The MQC Hierarchical Queuing with 3 Level Scheduler feature provides a flexible packet scheduling and queuing system in which you can specify how excess
QoS: Classification, Policing, and Marking on LAC Configuration Guide, Cisco IOS Release 12.4T
QoS: Classification, Policing, and Marking on LAC Configuration Guide, Cisco IOS Release 12.4T Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com
Using NetFlow Filtering or Sampling to Select the Network Traffic to Track
Using NetFlow Filtering or Sampling to Select the Network Traffic to Track First Published: June 19, 2006 Last Updated: December 17, 2010 This module contains information about and instructions for selecting
EVC Quality of Service
EVC Quality of Service Finding Feature Information EVC Quality of Service Last Updated: June 07, 2011 This document contains information about how to enable quality of service (QoS) features (such as traffic
Finding Support Information for Platforms and Cisco IOS and Catalyst OS Software Images
First Published: March 20, 2006 Last Updated: March 22, 2011 The feature is one of two features bundled with the QoS: Broadband Aggregation Enhancements Phase 1 feature. The feature provides the ability
Marking Traffic CHAPTER
CHAPTER 7 To service the growing numbers of customers and their needs, service provider networks have become more complex and often include both Layer 2 and Layer 3 network devices. With this continued
WRED-Explicit Congestion Notification
WRED-Explicit Congestion Notification Last Updated: December 2, 2011 Currently, the congestion control and avoidance algorithms for Transmission Control Protocol (TCP) are based on the idea that packet
Configuring Class-Based RTP and TCP Header Compression
Configuring Class-Based RTP and TCP Header Compression Last Updated: December 5, 2011 Header compression is a mechanism that compresses the IP header in a packet before the packet is transmitted. Header
Configuring Quality of Service
This chapter describes the Quality of Service and procedures to configure Quality of Service. Introduction to Quality of Service, page 1 CPT System QoS, page 4 Ingress QoS Functions, page 7 Egress QoS
Constraining IP Multicast in a Switched Ethernet Network
Constraining IP Multicast in a Switched Ethernet Network This module describes how to configure routers to use the Cisco Group Management Protocol (CGMP) in switched Ethernet networks to control multicast
QoS Group Match and Set for Classification and Marking
QoS Group Match and Set for Classification and Marking This feature provides the capability of matching and classifying traffic on the basis of the QoS group value. Finding Feature Information, on page
IEEE 802.1Q-in-Q VLAN Tag Termination
IEEE 802.1Q-in-Q VLAN Tag Termination Encapsulating IEEE 802.1Q VLAN tags within 802.1Q enables service providers to use a single VLAN to support customers who have multiple VLANs. The IEEE 802.1Q-in-Q
MPLS LDP Autoconfiguration
First Published: November 8, 2004 Last Updated: November 25, 2009 The feature enables you to globally configure Label Distribution Protocol (LDP) on every interface associated with a specified Interior
Cisco 1000 Series Connected Grid Routers QoS Software Configuration Guide
Cisco 1000 Series Connected Grid Routers QoS Software Configuration Guide January 17, 2012 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com
ATM PVC Bundle Enhancement MPLS EXP-Based PVC Selection
ATM PVC Bundle Enhancement MPLS EXP-Based PVC Selection This document describes enhancements to the ATM virtual circuit (VC) bundle management feature, which allows you to configure multiple VCs that have
QoS: Policing and Shaping Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 920 Series)
QoS: Policing and Shaping Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 920 Series) First Published: 2014-07-29 Last Modified: 2014-11-22 Americas Headquarters Cisco Systems, Inc. 170 West Tasman
Sun RPC ALG Support for Firewall and NAT
Sun RPC ALG Support for Firewall and NAT Last Updated: December 18, 2011 The Sun RPC ALG Support for Firewall and NAT feature adds support for the Sun Microsystems (Sun) Remote Procedure Call (RPC) Application
Byte-Based Weighted Random Early Detection
Byte-Based Weighted Random Early Detection First Published: August 26, 2003 Last Updated: February 28, 2006 This feature module explains how to enable byte-based Weighted Random Early Detection (WRED).
BCP Support on MLPPP
, page 1 Finding Feature Information, page 1 Information About, page 1 How to Configure, page 3 Configuration Examples for, page 12 Additional References, page 20 Feature Information for, page 22 This
Low Latency Queueing with Priority Percentage Support
Low Latency Queueing with Priority Percentage Support First Published: 12.2(2)T Last Updated: February 28, 2006 This feature allows you to configure bandwidth as a percentage within low latency queueing
Using NetFlow Filtering or Sampling to Select the Network Traffic to Track
Using NetFlow Filtering or Sampling to Select the Network Traffic to Track Last Updated: December 7, 2011 This module contains information about and instructions for selecting the network traffic to track
Quality of Service (QoS) Configuration Guide, Cisco IOS XE Everest a (Catalyst 3850 Switches)
Quality of Service (QoS) Configuration Guide, Cisco IOS XE Everest 16.5.1a (Catalyst 3850 Switches) First Published: 2017-05-31 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose,
Applying QoS Features Using the MQC
QoS: Modular QoS Command-Line Interface Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 900 Series) First Published: November 30, 2012 Last Modified: March 31, 2014 This chapter discusses the Modular
COPS Engine Operation
This document describes the Common Open Policy Service (COPS) engine feature on the Cisco CMTS routers. The Cisco CMTS routers also support Access control lists (ACLs) with the COPS engine. Finding Feature
Quality of Service (QoS) Configuration Guide, Cisco IOS XE Fuji 16.8.x (Catalyst 3850 Switches)
Quality of Service (QoS) Configuration Guide, Cisco IOS XE Fuji 16.8.x (Catalyst 3850 Switches) First Published: 2018-04-06 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA
Frame Relay Queueing and Fragmentation at the Interface
Frame Relay Queueing and Fragmentation at the Interface Last Updated: October 6, 2011 The Frame Relay Queueing and Fragmentation at the Interface feature introduces support for low-latency queueing (LLQ)
Modular QoS CLI Three-Level Hierarchical Policer
Modular QoS CLI Three-Level Hierarchical Policer The Modular QoS CLI (MQC) Three-Level Hierarchical Policer extends the traffic policing functionality by allowing you to configure traffic policing at three
Configuring Route Maps to Control the Distribution of MPLS Labels Between Routers in an MPLS VPN
Configuring Route Maps to Control the Distribution of MPLS Labels Between Routers in an MPLS VPN Route maps enable you to specify which routes are distributed with Multiprotocol Label Switching (MPLS)
Flexible NetFlow Full Flow support
Flexible NetFlow Full Flow support Last Updated: January 29, 2013 The Flexible NetFlow - Full Flow support feature enables Flexible NetFlow to collect flow records for every packet. Finding Feature Information,
Implementing IP in IP Tunnel
This chapter module provides conceptual and configuration information for IP in IP tunnels on Cisco ASR 9000 Series Router. Note For a complete description of the IP in IP tunnel commands listed in this
AAA Authorization and Authentication Cache
AAA Authorization and Authentication Cache First Published: March 16, 2006 Last Updated: March 1, 2006 The AAA Authorization and Authentication Cache feature allows you to cache authorization and authentication
Metadata Configuration Guide Cisco IOS Release 15M&T
Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 527-0883 2014 Cisco Systems, Inc. All rights
Configuring Data Export for Flexible NetFlow with Flow Exporters
Configuring Data Export for Flexible NetFlow with Flow Exporters Last Updated: September 4, 2012 This document contains information about and instructions for configuring flow exporters to export Flexible
MPLS VPN over mgre. Finding Feature Information. Last Updated: November 1, 2012
MPLS VPN over mgre Last Updated: November 1, 2012 The MPLS VPN over mgre feature overcomes the requirement that a carrier support multiprotocol label switching (MPLS) by allowing you to provide MPLS connectivity
Configuring the Cisco IOS DHCP Relay Agent
Configuring the Cisco IOS DHCP Relay Agent Cisco routers running Cisco IOS software include Dynamic Host Configuration Protocol (DHCP) server and relay agent software. A DHCP relay agent is any host that
IPv6 over IPv4 GRE Tunnels
GRE tunnels are links between two points, with a separate tunnel for each link. The tunnels are not tied to a specific passenger or transport protocol, but in this case carry IPv6 as the passenger protocol
QoS Packet Marking. About. Marking Definition
refers to changing a field within a packet either at Layer 2 (802.1Q/p CoS, MPLS EXP) or Layer 3 (IP Precedence, DSCP and/or IP ECN). It also refers to preserving any classification decision that was reached
MPLS over GRE. Finding Feature Information. Prerequisites for MPLS VPN L3VPN over GRE
The feature provides a mechanism for tunneling Multiprotocol Label Switching (MPLS) packets over a non-mpls network. This feature utilizes MPLS over generic routing encapsulation (MPLSoGRE) to encapsulate
Quality of Service Commands
Quality of Service Commands This module lists quality of service (QoS) commands in alphabetical order. To use commands of this module, you must be in a user group associated with a task group that includes
MPLS Label Distribution Protocol (LDP)
MPLS Label Distribution Protocol (LDP) First Published: January 1, 1999 Last Updated: May 1, 2008 Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP) enables peer label switch routers
Configuring Quality of Service
CHAPTER 25 QoS refers to the ability of a network to provide improved service to selected network traffic over various underlying technologies including Frame Relay, ATM, Ethernet and 802.1 networks, SONET,
Configuring Weighted Fair Queueing
Configuring Weighted Fair Queueing This chapter describes the tasks for configuring weighted fair queueing (WFQ), class-based WFQ (CBWFQ), and low latency queueing (LLQ). For complete conceptual information,
Configuring Data Export for Flexible NetFlow with Flow Exporters
Configuring Data Export for Flexible NetFlow with Flow Exporters Last Updated: November 29, 2012 This document contains information about and instructions for configuring flow exporters to export Flexible
Configuring Modular QoS Congestion Avoidance
Congestion avoidance techniques monitor traffic flow in an effort to anticipate and avoid congestion at common network bottlenecks. Avoidance techniques are implemented before congestion occurs as compared
MPLS VPN Carrier Supporting Carrier IPv4 BGP Label Distribution
MPLS VPN Carrier Supporting Carrier IPv4 BGP Label Distribution This feature lets you configure your carrier supporting carrier network to enable Border Gateway Protocol (BGP) to transport routes and Multiprotocol
Per-Session QoS. Finding Feature Information
The feature is one of two features bundled with the QoS: Broadband Aggregation Enhancements--Phase 1 feature. The feature provides the ability to apply quality of service (QoS) features (such as traffic
Rate Based Satellite Control Protocol
Rate Based Satellite Control Protocol Last Updated: November 1, 2012 Rate Based Satellite Control Protocol (RBSCP) was designed for wireless or long-distance delay links with high error rates, such as
Configuring Multiple Basic Service Set Identifiers and Microsoft WPS IE SSIDL
Configuring Multiple Basic Service Set Identifiers and Microsoft WPS IE SSIDL This module describes how to configure multiple basic service set identifiers (BSSID) on a Cisco 800, 1800, 2800, or 3800 series
Port-Shaper and LLQ in the Presence of EFPs
The feature allows network designers to configure port and class policies on ports that contain Ethernet Flow Points (EFPs). These policies support Low Latency Queueing (LLQ) and traffic prioritization
COPS Engine Operation
This document describes the Common Open Policy Service (COPS) engine feature on the Cisco CMTS routers. The Cisco CMTS routers also support Access control lists (ACLs) with the COPS engine. Finding Feature
Creating an IP Access List to Filter IP Options TCP Flags Noncontiguous Ports or TTL Values
Creating an IP Access List to Filter IP Options TCP Flags Noncontiguous Ports or TTL Values Last Updated: January 18, 2012 This module describes how to use an IP access list to filter IP packets that contain
DHCP Lease Limit per ATM/RBE Unnumbered Interface
DHCP Lease Limit per ATM/RBE Unnumbered Interface The DHCP Lease Limit per ATM/RBE Unnumbered Interface feature limits the number of Dynamic Host Configuration Protocol (DHCP) leases per subinterface offered
Access Control List Enhancements on the Cisco Series Router
Access Control List Enhancements on the Cisco 12000 Series Router Part Number, May 30, 2008 The Cisco 12000 series router filters IP packets using access control lists (ACLs) as a fundamental security
Encrypted Vendor-Specific Attributes
Encrypted Vendor-Specific Attributes Last Updated: January 15, 2012 The Encrypted Vendor-Specific Attributes feature provides users with a way to centrally manage filters at a RADIUS server and supports
Configuring Classification
CHAPTER 3 This chapter describes how to configure classification on the Cisco Nexus 7000 Series NX-OS device. This chapter includes the following sections: Information About Classification, page 3-1 Licensing
Inspection of Router-Generated Traffic
Inspection of Router-Generated Traffic The Inspection of Router-Generated Traffic feature allows Context-Based Access Control (CBAC) to inspect traffic that is originated by or destined to the router on
Configuring Class-Based RTP and TCP Header Compression
Configuring Class-Based RTP and TCP Header Compression Header compression is a mechanism that compresses the IP header in a packet before the packet is transmitted. Header compression reduces network overhead
WRED Explicit Congestion Notification
Finding Feature Information, page 1 Prerequisites for WRED-Explicit Congestion Notification, page 1 Information About WRED-Explicit Congestion Notification, page 2 How to Configure WRED-Explicit Congestion
Control Plane Policing
The feature allows you to configure a quality of service (QoS) filter that manages the traffic flow of control plane packets to protect the control plane of Cisco IOS XE routers and switches against reconnaissance
IPsec Anti-Replay Window: Expanding and Disabling
IPsec Anti-Replay Window: Expanding and Disabling First Published: February 28, 2005 Last Updated: March 24, 2011 Cisco IP security (IPsec) authentication provides anti-replay protection against an attacker
Configuring Modular QoS on Link Bundles
A link bundle is a group of one or more ports that are aggregated together and treated as a single link. This module describes QoS on link bundles. Line Card, SIP, and SPA Support Feature ASR 9000 Ethernet
Using Multilink PPP over Frame Relay
Using Multilink PPP over Frame Relay Multilink PPP is a method used to reduce latency and jitter for real-time traffic. This module contains conceptual information and configuration tasks for using Multilink
Single-router APS for the Cisco Series Router
Single-router APS for the Cisco 12000 Series Router This feature provides 1+1 single-router automatic protection switching (SR-APS) for the Cisco 12000 series ISE ATM line cards (Engine 3) installed in
Prioritizing Services
CHAPTER 8 Voice, video, and data applications have differing quality of service needs. Voice applications, for example, require a small but guaranteed amount of bandwidth, are less tolerant of packet delay
MPLS Label Distribution Protocol (LDP)
MPLS Label Distribution Protocol (LDP) Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP) enables peer label switch routers (LSRs) in an MPLS network to exchange label binding information
Configuring TCP Header Compression
Configuring TCP Header Compression First Published: January 30, 2006 Last Updated: May 5, 2010 Header compression is a mechanism that compresses the IP header in a packet before the packet is transmitted.
Suppress BGP Advertisement for Inactive Routes
Suppress BGP Advertisement for Inactive Routes The Suppress BGP Advertisements for Inactive Routes features allows you to configure the suppression of advertisements for routes that are not installed in
Configuring Scalable Hub-and-Spoke MPLS VPNs
Configuring Scalable Hub-and-Spoke MPLS VPNs Last Updated: December 15, 2011 This module explains how to ensure that virtual private network (VPN) clients that connect to the same provider edge (PE) router
IEEE 802.1ah on Provider Backbone Bridges
IEEE 802.1ah on Provider Backbone Bridges First Published: November 25, 2009 Last Updated: February 8, 2011 The IEEE 802.1ah on Provider Backbone Bridges feature enables MAC-in-MAC tunneling on Ethernet
Frame Relay over L2TPv3
The (FRoL2TPv3) feature enables Frame Relay switching over Layer 2 Tunnel Protocol Version 3 (L2TPv3). The feature works with like interfaces and disparate interfaces (L2VPN interworking). Finding Feature
MPLS VPN Carrier Supporting Carrier Using LDP and an IGP
MPLS VPN Carrier Supporting Carrier Using LDP and an IGP Last Updated: December 14, 2011 Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN) Carrier Supporting Carrier (CSC) enables one
Using NetFlow Sampling to Select the Network Traffic to Track
Using NetFlow Sampling to Select the Network Traffic to Track Last Updated: September 17, 2012 This module contains information about and instructions for selecting the network traffic to track through
Multiclass MLP Support on the Cisco PRE3/PRE4
Multiclass MLP Support on the Cisco 10000 PRE3/PRE4 First Published: August 2008 This document describes the Multiclass MLP Support on the Cisco 10000 Series Router PRE3/PRE4 feature. In releases prior
RADIUS Packet of Disconnect
First Published: March 19, 2001 Last Updated: October 2, 2009 The feature is used to terminate a connected voice call. Finding Feature Information Your software release may not support all the features
MPLS VPN Carrier Supporting Carrier IPv4 BGP Label Distribution
MPLS VPN Carrier Supporting Carrier IPv4 BGP Label Distribution This feature enables you to configure your carrier supporting carrier network to enable Border Gateway Protocol (BGP) to transport routes
Loose Checking Option for TCP Window Scaling in Zone-Based Policy Firewall
Loose Checking Option for TCP Window Scaling in Zone-Based Policy Firewall The Loose Checking Option for TCP Window Scaling in Zone-Based Policy Firewall feature disables the strict checking of the TCP
Creating an IP Access List to Filter IP Options, TCP Flags, or Noncontiguous Ports
Creating an IP Access List to Filter IP Options, TCP Flags, or Noncontiguous Ports First Published: August 18, 2006 Last Updated: July 31, 2009 This module describes how to use an IP access list to filter
PPP/MLP MRRU Negotiation Configuration
PPP/MLP MRRU Negotiation Configuration The PPP/MLP MRRU Negotiation Configuration feature allows a router to send and receive frames over Multilink PPP (MLP) bundles that are larger than the default Maximum