D-Link DXS-3600-32S CLI Guide - Page 159

Usage Guideline, Example, Display Parameters, Description

Page 159 highlights

Usage Guideline DXS-3600 Series 10GbE Layer 2/3 Switch CLI Reference Guide This command displays the parameters of BGP. Example This example shows the output from the show ip bgp parameters command, in privileged mode. DXS-3600-32S#show ip bgp parameters BGP Global State Version BGP Router Identifier Synchronization Enforce First AS Local AS Number Hold Time Keepalive Interval Always Compare MED Deterministics MED Med Confed Default Local Preference AS Path Ignore Compare Router ID MED Missing as Worst Compare Confederation Path Fast External Fallover Aggregate Next Hop Check Default IPv4 Unicast : Enabled : 4 : 9.9.9.9 : Disabled : Disabled : 65000 : 180 Seconds : 60 Seconds : Disabled : Disabled : Disabled : 100 : Disabled : Disabled : Disabled : Disabled : Enabled : Disabled : Enabled DXS-3600-32S# Display Parameters Description BGP Global State BGP global state, In this version, BGP always is enabled. Version BGP protocol version. BGP Router Identifier BGP process's router ID. Synchronization BGP synchronization state. Enforce First AS When the setting is enabled, any updates received from an external neighbor, that does not have the neighbor's configured Autonomous System (AS) at the beginning of the AS_PATH in the received update, will be denied. Local AS Number The local AS number. Hold Time The system will declare a peer as dead if a keepalive message is received that is more than the hold time. Keepalive Interval Frequency that a BGP send keepalive message to peer. Always Compare MED Enable or disable the comparison of the Multi Exit Discriminator (MED) for paths from the neighbors in different Autonomous Systems. Deterministics MED Enable or disable to enforce the deterministic comparison of the Multi Exit Discriminator (MED) for paths received from the neighbors within the same Autonomous System. Med Confed If enabled, the BGP process will compare the MED for the routes that are received from confederation peers. Default Local Preference Specifies the default local preference value. The default value is 100. AS Path Ignore If enabled, the BGP process will ignore the AS path in the path selection process. By default this value is disabled. Compare Router ID If enabled, the BGP process will include the router ID in the path selection process. Similar routes are compared and the route with the lowest router ID is selected. By default this value is disabled. MED Missing as Worst If enabled, the BGP process will assign a value of infinity to routes that are missing the Multi Exit Discriminator (MED) attribute. Compare Confederation Path If enabled, the BGP process will compare the confederation AS path length of the routes received. The shorter the confederation AS path length, the better the route is. 151

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DXS-3600 Series 10GbE Layer 2/3 Switch CLI Reference Guide
151
Usage Guideline
This command displays the parameters of BGP.
Example
This example shows the output from the
show ip bgp parameters
command, in
privileged mode.
DXS-3600-32S#show ip bgp parameters
BGP Global State
: Enabled
Version
: 4
BGP Router Identifier
: 9.9.9.9
Synchronization
: Disabled
Enforce First AS
: Disabled
Local AS Number
: 65000
Hold Time
: 180 Seconds
Keepalive Interval
: 60 Seconds
Always Compare MED
: Disabled
Deterministics MED
: Disabled
Med Confed
: Disabled
Default Local Preference
: 100
AS Path Ignore
: Disabled
Compare Router ID
: Disabled
MED Missing as Worst
: Disabled
Compare Confederation Path
: Disabled
Fast External Fallover
: Enabled
Aggregate Next Hop Check
: Disabled
Default IPv4 Unicast
: Enabled
DXS-3600-32S#
Display Parameters
Description
BGP Global State
BGP global state, In this version, BGP always is enabled.
Version
BGP protocol version.
BGP Router Identifier
BGP process’s router ID.
Synchronization
BGP synchronization state.
Enforce First AS
When the setting is enabled, any updates received from an external neighbor, that
does not have the neighbor’s configured Autonomous System (AS) at the beginning
of the AS_PATH in the received update, will be denied.
Local AS Number
The local AS number.
Hold Time
The system will declare a peer as dead if a keepalive message is received that is
more than the hold time.
Keepalive Interval
Frequency that a BGP send keepalive message to peer.
Always Compare MED
Enable or disable the comparison of the Multi Exit Discriminator (MED) for paths
from the neighbors in different Autonomous Systems.
Deterministics MED
Enable or disable to enforce the deterministic comparison of the Multi Exit
Discriminator (MED) for paths received from the neighbors within the same
Autonomous System.
Med Confed
If enabled, the BGP process will compare the MED for the routes that are received
from confederation peers.
Default Local Preference
Specifies the default local preference value. The default value is 100.
AS Path Ignore
If enabled, the BGP process will ignore the AS path in the path selection process. By
default this value is disabled.
Compare Router ID
If enabled, the BGP process will include the router ID in the path selection process.
Similar routes are compared and the route with the lowest router ID is selected. By
default this value is disabled.
MED Missing as Worst
If enabled, the BGP process will assign a value of infinity to routes that are missing
the Multi Exit Discriminator (MED) attribute.
Compare Confederation Path
If enabled, the BGP process will compare the confederation AS path length of the
routes received. The shorter the confederation AS path length, the better the route
is.