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Brocade Communications Systems FastIron X Series User Manual

Brocade Communications Systems FastIron X Series
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Limiting advertisement of a static BGP4 network to selected neighbors
You can control the advertisement of a static BGP4 network to BGP4 neighbors that are congured as Service Edge Devices. When this
feature is congured for a BGP4 neighbor, static BGP4 network routes that are installed in the routing table as DROP routes are not
advertised to that neighbor. When this feature is congured, the route is only advertised to identied Service Edge devices if it is installed
as a forward route, such as the routes described in these steps.
1. There is a learned route from a customer BGP4 peering.
2. There is a valid learned route from another Services Edge device as a result of a customer route present on that device.
To congure a BGP4 neighbor to limit the advertisement of Static BGP4 Network routes, enter the static-network-edge
command as shown.
device(config)# router bgp
device(config-bgp)# neighbor 10.2.3.4 static-network-edge
Syntax: [no] neighbor ip-address | peer-group-name static-network-edge
The ip-addr and peer-group-name variables indicate whether you are
conguring an individual neighbor or a peer group. If you
specify a neighbor IP address, you are conguring that individual neighbor. If you specify a peer group name, you are
conguring a peer group.
Dynamic route lter update
Routing protocols use various route lters to control the distribution of routes. Route lters are used to lter routes received from and
advertised to other devices. Protocols also use route-map policies to control route redistribution from other routing protocols. In addition,
route lter policies are used to select routes to be installed in the routing tables, and used by forwarding engine to forward trac.
There are currently 5 dierent types of route lters dened for use in a device:
• Access List (ACL)
• Prex-List
• BGP4 as-path Access-list
• BGP4 community-list
• Route-map
Not every protocol uses all of these route lters. A protocol will usually use two or three lter types.
TABLE 93 Route
lters used by each protocol
Protocol Route map Prex list Community- list As-path access- list ACL
BGP4 X X BGP4 does not use
Community- List lters
directly. It does use
them indirectly through
route-map lters that
contain Community-
List lters.
X X
OSPF X X X X X
RIP X X X X
RIPng X
OSPFv3 X X X X
MSDP X
MCast X
Conguring a static BGP4 network
FastIron Ethernet Switch Layer 3 Routing
436 53-1003627-04

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Brocade Communications Systems FastIron X Series Specifications

General IconGeneral
BrandBrocade Communications Systems
ModelFastIron X Series
CategorySwitch
LanguageEnglish

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