User's Manual
Table Of Contents
- Contents
- Preface
- The Command Line Interface
- First-Time Configuration
- Using the Setup Utility
- Setting Passwords
- Menu Basics
- The Information Menu
- Information Menu
- System Information
- Layer 2 Information
- Layer 3 Information
- IP Routing Information
- ARP Information
- BGP Information
- BGP Peer information
- BGP Summary information
- OSPF Information
- Routing Information Protocol Information
- IP Information
- IGMP Multicast Group Information
- IGMP Group Information
- IGMP Multicast Router Port Information
- IGMP Mrouter Information
- VRRP Information
- Quality of Service Information
- 802.1p Information
- Access Control List Information
- Link Status Information
- Port Information
- Logical Port to GEA Port Mapping
- Fiber Port SFP Status
- Information Dump
- The Statistics Menu
- The Configuration Menu
- Configuration Menu
- Viewing, Applying, and Saving Changes
- System Configuration
- Port Configuration
- Layer 2 Configuration
- 802.1x Configuration
- Rapid Spanning Tree Protocol/ Multiple Spanning Tree Protocol Configuration
- Common Internal Spanning Tree Configuration
- Spanning Tree Configuration
- GVRP Configuration
- GVRP Port Configuration
- Trunk Configuration
- IP Trunk Hash Configuration
- LACP Configuration
- Layer 2 Failover Configuration
- VLAN Configuration
- Protocol-based VLAN Configuration
- Private VLAN Configuration
- Layer 3 Configuration
- IP Interface Configuration
- Default Gateway Configuration
- IP Static Route Configuration
- IP Multicast Route Configuration
- ARP Configuration
- IP Forwarding Configuration
- Network Filter Configuration
- Routing Map Configuration
- Routing Information Protocol Configuration
- Open Shortest Path First Configuration
- Border Gateway Protocol Configuration
- IGMP Configuration
- Domain Name System Configuration
- Bootstrap Protocol Relay Configuration
- VRRP Configuration
- Quality of Service Configuration
- Access Control List Configuration
- Port Mirroring Configuration
- Setup
- Dump
- Saving the Active Switch Configuration
- Restoring the Active Switch Configuration
- The Operations Menu
- The Boot Options Menu
- The Maintenance Menu
- Alteon OS Syslog Messages
- Alteon OS SNMP Agent
- Glossary
- Index
Alteon OS Command Reference
276
The Configuration Menu 43W7774, May 2007
/cfg/l3/bgp
Border Gateway Protocol Configuration
Border Gateway Protocol (BGP) is an Internet protocol that enables routers on a network to
share routing information with each other and advertise information about the segments of the
IP address space they can access within their network with routers on external networks. BGP
allows you to decide what is the “best” route for a packet to take from your network to a desti-
nation on another network, rather than simply setting a default route from your border router(s)
to your upstream provider(s). You can configure BGP either within an autonomous system or
between different autonomous systems. When run within an autonomous system, it's called
internal BGP (iBGP). When run between different autonomous systems, it's called external
BGP (eBGP). BGP is defined in RFC 1771.
The BGP Menu enables you to configure the switch to receive routes and to advertise static
routes, fixed routes and virtual server IP addresses with other internal and external routers. In
the current Alteon OS implementation, the
GbE Switch Module does not advertise BGP routes
that are learned from other BGP “speakers”.
The BGP menu option is turned off by default.
NOTE – Fixed routes are subnet routes. There is one fixed route per IP interface.
[Border Gateway Protocol Menu]
peer - Peer menu
aggr - Aggregation menu
as - Set Autonomous System (AS) number
pref - Set Local Preference
on - Globally turn BGP ON
off - Globally turn BGP OFF
cur - Display current BGP configuration
Table 6-75 Border Gateway Protocol Menu (/cfg/l3/bgp)
Command Syntax and Usage
peer <peer number (1-16)>
Displays the menu used to configure each BGP peer. Each border router, within an autonomous
system, exchanges routing information with routers on other external networks. To view menu
options, see page 278.
aggr <aggregate number (1-16)>
Displays the Aggregation Menu. To view menu options, see page 281.