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IP Routing: BGP Configuration Guide, Cisco IOS XE Release 2
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Cisco BGP Overview
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Configuring a Basic BGP Network
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Configuring Multiprotocol BGP (MP-BGP) Support for CLNS
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Connecting to a Service Provider Using External BGP
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Configuring BGP Neighbor Session Options
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Configuring Internal BGP Features
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Configuring Advanced BGP Features
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BGP Link Bandwidth
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iBGP Multipath Load Sharing
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BGP Multipath Load Sharing for Both eBGP and iBGP in an MPLS-VPN
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Loadsharing IP Packets over More Than Six Parallel Paths
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BGP Policy Accounting Output Interface Accounting
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BGP Cost Community
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BGP Support for IP Prefix Import from Global Table into a VRF Table
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BGP per Neighbor SoO Configuration
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Per-VRF Assignment of BGP Router ID
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BGP Next Hop Unchanged
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BGP Support for the L2VPN Address Family
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BGP 4 MIB Support for Per-Peer Received Routes
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BGP Event-Based VPN Import
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BGP Best External
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BGP PIC Edge for IP and MPLS-VPN
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Feedback
Contents
Loadsharing IP Packets over More Than Six Parallel Paths
This document describes the Loadsharing IP Packets over More Than Six Parallel Paths feature, which increases the maximum number of parallel routes that can be installed to the routing table for multipath loadsharing.
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the Feature Information Table at the end of this document.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Overview of Loadsharing IP Packets over More Than Six Parallel Paths
The Loadsharing IP Packets over More Than Six Parallel Paths feature increases the maximum number of parallel routes that can be installed to the routing table. The maximum number has been increased from six to sixteen for the following commands:
- maximum-paths
- maximum-paths eibgp
- maximum-paths ibgp
The output of the show ip route summary command has been updated to display the number of parallel routes supported by the routing table.
The benefits of this feature include the following:
- More flexible configuration of parallel routes in the routing table.
- Ability to configure multipath loadsharing over more links to allow for the configuration of higher-bandwidth aggregation using lower-speed links.
Additional References
For additional information related to multipath loadsharing and the configuration of parallel routes, see the following references:
Related Documents
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Related Topic |
Document Title |
|---|---|
|
BGP commands: complete command syntax, command mode, command history, defaults, usage guidelines, and examples |
Cisco IOS IP Routing: BGP Command Reference |
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eiBGP Multipath Load Sharing |
"BGP Multipath Load Sharing for Both eBGP and iBGP in an MPLS-VPN" module |
|
iBGP Multipath Load Sharing |
"iBGP Multipath Load Sharing" module |
|
Cisco IOS master command list, all releases |
MIBs
Technical Assistance
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Description |
Link |
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Feature Information for Loadsharing IP Packets over More Than Six Parallel Paths
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
| Table 1 | Feature Information for Loadsharing IP Packets over More Than Six Parallel Paths |
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Feature Name |
Releases |
Feature Information |
|---|---|---|
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Loadsharing IP Packets over More Than Six Parallel Paths |
Cisco IOS XE Release 2.1 |
This feature was introduced on the Cisco ASR 1000 Series Aggregation Services Routers. The following commands were modified by this feature: maximum-paths, maximum-paths eibgp, maximum-paths ibgp, show ip route summary |
Cisco and the Cisco Logo are trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and other countries. A listing of Cisco's trademarks can be found at www.cisco.com/go/trademarks. Third party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1005R)
Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.