D-Link DXS-3600-32S CLI Guide - Page 74

Parameters, Command Mode, Command Default Level, Usage Guideline, Example, Default

Page 74 highlights

DXS-3600 Series 10GbE Layer 2/3 Switch CLI Reference Guide Command Mode Command Default Level Usage Guideline Router Configuration. Level: 8. (EI Mode Only Command) This command is used to enter the IPv4 VPN address family mode. The BGP peers activated in this mode are used to exchange VPN IPv4 routing information. Please note that only iBGP peers are supported in this address family now. To exit from this address-family configuration mode, use the exit-address-family command. Example This example shows how to enter the VPNv4 address family and activate a BGP peer. DXS-3600-32S# configure terminal DXS-3600-32S(config)# router bgp 120 DXS-3600-32S(config-router)# address-family vpnv4 DXS-3600-32S(config-router-af)# neighbor 10.2.2.5 activate DXS-3600-32S(config-router-af)# neighbor 10.2.2.5 send-community extended DXS-3600-32S(config-router-af)# exit-address-family DXS-3600-32S(config-router)# 7-3 aggregate-address This command is used to configure BGP aggregate entries. Use the no form of this command to delete the entry. aggregate-address NETWORK-ADDRESS [summary-only] [as-set] no aggregate-address NETWORK-ADDRESS Parameters NETWORK-ADDRESS summary-only as-set Specifies the network address and the sub-network mask that BGP will aggregate. For example, the format of NETWORK-ADDRESS can be 10.9.18.2/8. (Optional) Filters all more-specific routes from updates. (Optional) Generates autonomous system set path information. Default Command Mode Command Default Level Usage Guideline None. Router Configuration. Level: 8. (EI Mode Only Command) Aggregates are used to minimize the size of routing tables. Aggregation combines the characteristics of several different routes and advertises a single route. The aggregate-address command creates an aggregate entry in the BGP routing table if any more-specific BGP routes are available in the specified range. Using the summary-only parameter advertises the prefix only, suppressing the more-specific routes to all neighbors. Use the as-set parameter to reduce the size of path information by listing each AS number only once, even if it was included in multiple paths that were aggregated. The as-set parameter is useful when aggregation of information results in incomplete path information. You can verify your settings by entering the show ip bgp aggregate command. Example This example shows how to propagate the network 172.0.0.0 and suppress a more specific route called 172.10.0.0 DXS-3600-32S#configure terminal DXS-3600-32S(config)#router bgp 65534 DXS-3600-32S(config-router)#aggregate-address 172.0.0.0/8 summary-only DXS-3600-32S(config-router)# 66

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DXS-3600 Series 10GbE Layer 2/3 Switch CLI Reference Guide
66
7-3
aggregate-address
This command is used to configure BGP aggregate entries. Use the
no
form of this command to delete the entry.
aggregate-address
NETWORK-ADDRESS
[summary-only] [as-set]
no aggregate-address
NETWORK-ADDRESS
Parameters
Command Mode
Router Configuration.
Command Default Level
Level: 8. (
EI Mode Only Command
)
Usage Guideline
This command is used to enter the IPv4 VPN address family mode. The BGP peers
activated in this mode are used to exchange VPN IPv4 routing information.
Please note that only iBGP peers are supported in this address family now.
To exit from this address-family configuration mode, use the
exit-address-family
command.
Example
This example shows how to enter the VPNv4 address family and activate a BGP
peer.
DXS-3600-32S# configure terminal
DXS-3600-32S(config)# router bgp 120
DXS-3600-32S(config-router)# address-family vpnv4
DXS-3600-32S(config-router-af)# neighbor 10.2.2.5 activate
DXS-3600-32S(config-router-af)# neighbor 10.2.2.5 send-community extended
DXS-3600-32S(config-router-af)# exit-address-family
DXS-3600-32S(config-router)#
NETWORK-ADDRESS
Specifies the network address and the sub-network mask that BGP will aggregate.
For example, the format of
NETWORK-ADDRESS
can be 10.9.18.2/8.
summary-only
(Optional) Filters all more-specific routes from updates.
as-set
(Optional) Generates autonomous system set path information.
Default
None.
Command Mode
Router Configuration.
Command Default Level
Level: 8. (
EI Mode Only Command
)
Usage Guideline
Aggregates are used to minimize the size of routing tables. Aggregation combines
the characteristics of several different routes and advertises a single route. The
aggregate-address
command creates an aggregate entry in the BGP routing table if
any more-specific BGP routes are available in the specified range. Using the
summary-only
parameter advertises the prefix only, suppressing the more-specific
routes to all neighbors.
Use the
as-set
parameter to reduce the size of path information by listing each AS
number only once, even if it was included in multiple paths that were aggregated.
The
as-set
parameter is useful when aggregation of information results in
incomplete path information.
You can verify your settings by entering the
show ip bgp aggregate
command.
Example
This example shows how to propagate the network 172.0.0.0 and suppress a more
specific route called 172.10.0.0
DXS-3600-32S#configure terminal
DXS-3600-32S(config)#router bgp 65534
DXS-3600-32S(config-router)#aggregate-address 172.0.0.0/8 summary-only
DXS-3600-32S(config-router)#