
C
HAPTER
51
| IP Routing Commands
Border Gateway Protocol (BGPv4)
– 1841 –
C
OMMAND
U
SAGE
◆
Route reflection from this device is enabled by default, but is only
functional if a client has been configured with the
command.
◆
Route reflection is not required if all of the routers in an AS are fully
meshed as normally required by interior BGP. However, to make interior
BGP more scalable, route reflection or confederations can be used.
Route reflection uses one or more route reflectors to reflect routes
between specified clients within a cluster. Clients within a reflector
cluster therefore need not be fully meshed, and the exchange of
routing information is thereby reduced since the clients need not
communicate with any routers outside of the cluster.
◆
Routing information from an external BGP router is advertised to all
cluster clients and non-client peers. Information from a non-client peer
is advertised to all clients. And information from cluster members is
reflected to all routing peers, both inside and outside of the cluster.
using this model, the local AS can be divided into many clusters.
◆
Use the
command to designate route reflectors within
the same cluster so that route reflectors can recognize updates from
other route reflectors in the same cluster.
E
XAMPLE
Console(config-router)#bgp client-to-client reflection
Console(config-router)#
R
ELATED
C
OMMANDS
neighbor route-reflector-client (1876)
bgp cluster-id
This command configures the cluster identifier for multiple route reflectors
in the same cluster. Use the
no
form to remove the cluster identifier.
S
YNTAX
bgp cluster-id
cluster-identifier
no
bgp cluster-id
cluster-identifier
– The cluster identifier of this router when acting
as a route reflector. This identifier can be expressed in the form an
IPv4 address or an integer in the range of 1-4294967295.
C
OMMAND
M
ODE
Router Configuration
D
EFAULT
S
ETTING
The router identifier of a lone route reflector in a cluster.
Summary of Contents for ECS4660-28F
Page 1: ...Management Guide www edge core com ECS4660 28F Layer 3 Gigabit Ethernet Switch...
Page 2: ......
Page 4: ......
Page 12: ...ABOUT THIS GUIDE 12...
Page 64: ...CONTENTS 64...
Page 90: ...TABLES 90...
Page 92: ...SECTION I Getting Started 92...
Page 122: ...SECTION II Web Configuration 122 Multicast Routing on page 825...
Page 148: ...CHAPTER 3 Using the Web Interface Navigating the Web Browser Interface 148...
Page 224: ...CHAPTER 5 Interface Configuration VLAN Trunking 224 Figure 68 Configuring VLAN Trunking...
Page 262: ...CHAPTER 6 VLAN Configuration Configuring VLAN Translation 262...
Page 304: ...CHAPTER 9 Congestion Control Automatic Traffic Control 304...
Page 340: ...CHAPTER 11 Quality of Service Attaching a Policy Map to a Port 340...
Page 452: ...CHAPTER 13 Security Measures DHCP Snooping 452...
Page 740: ...CHAPTER 17 IP Services Configuring the PPPoE Intermediate Agent 740...
Page 866: ...CHAPTER 21 Multicast Routing Configuring PIMv6 for IPv6 866...
Page 882: ...CHAPTER 22 Using the Command Line Interface CLI Command Groups 882...
Page 1024: ...CHAPTER 26 Remote Monitoring Commands 1024...
Page 1030: ...CHAPTER 27 Flow Sampling Commands 1030...
Page 1088: ...CHAPTER 28 Authentication Commands PPPoE Intermediate Agent 1088...
Page 1162: ...CHAPTER 29 General Security Measures Configuring Port based Traffic Segmentation 1162...
Page 1186: ...CHAPTER 30 Access Control Lists ACL Information 1186...
Page 1214: ...CHAPTER 31 Interface Commands Transceiver Threshold Configuration 1214...
Page 1238: ...CHAPTER 33 Port Mirroring Commands RSPAN Mirroring Commands 1238...
Page 1258: ...CHAPTER 34 Congestion Control Commands Automatic Traffic Control Commands 1258...
Page 1270: ...CHAPTER 36 UniDirectional Link Detection Commands 1270...
Page 1276: ...CHAPTER 37 Address Table Commands 1276...
Page 1336: ...CHAPTER 39 ERPS Commands 1336...
Page 1386: ...CHAPTER 40 VLAN Commands Configuring Voice VLANs 1386...
Page 1406: ...CHAPTER 41 Class of Service Commands Priority Commands Layer 3 and 4 1406...
Page 1424: ...CHAPTER 42 Quality of Service Commands 1424...
Page 1536: ...CHAPTER 43 Multicast Filtering Commands MLD Proxy Routing 1536...
Page 1602: ...CHAPTER 45 CFM Commands Delay Measure Operations 1602...
Page 1624: ...CHAPTER 47 Domain Name Service Commands 1624...
Page 1646: ...CHAPTER 48 DHCP Commands DHCP Server 1646...
Page 1974: ...SECTION IV Appendices 1974...
Page 1980: ...APPENDIX A Software Specifications Management Information Bases 1980...