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New Member

prefix-list; clear bgp peer-group Test soft in; no file prompt quiet

Hello everyone,

I have a few simple questions. Hope someone will help me   Thank you in advance.

1) We are using prefix-set into route-maps, but how I can use a prefix-list?

2) In classic IOS we have the command:  clear bgp peer-group Test soft in

I don't see it in IOS-XR (Cisco IOS XR Software, Version 4.0.1):

RP/0/RSP0/CPU0:STH02#clear bgp ipv4 unicast ?

  *                  Clear all peers and all routes from the BGP table

  A.B.C.D or X:X::X  BGP neighbor address to clear

  as                 Clear peers in a specific AS

  dampening          Clear route flap dampening information

  external           Clear all external peers

  flap-statistics    Clear flap statistics

  nexthop            Clear nexthop

  self-originated    Clear redistributed, network and aggregate routes originated here

  shutdown           Clear all peers which were shut down due to low memory

3) In classic IOS we have the command: no file prompt quiet

I don't see it in IOS-XR.  What is the command for IOS-XR?

I need it for the operation like this:

copy ftp://**:***@216.*.*.*/CUST_AS-TEST-in.prefixlist compactflash:/PrefixFilters/CUST_AS-TEST-in.prefixlist

Wed Apr 18 12:02:00.936 UTC

Destination filename [/compactflash:/PrefixFilters/CUST_AS-TEST-in.prefixlist]?  !!!!   I don't need this question

Copy : Destination exists, overwrite ?[confirm]                                                   !!!!   I don't need this question

Accessing ftp://*:*@216.*.*.*/CUST_AS-TEST-in.prefixlist

C

584 bytes copied in      0 sec

--

Have a nice day,

Dimitry

4 REPLIES
Cisco Employee

prefix-list; clear bgp peer-group Test soft in; no file prompt q

1) Once configured the prefix list is used in RPL, with things like 'if destination in prefix-list then pass'

For a complete explanation about route-policies, check

http://www.cisco.com/en/US/docs/ios_xr_sw/iosxr_r3.7/routing/configuration/guide/rc37rpl.html

2) BGP soft reset is supported - see:

http://www.cisco.com/en/US/docs/ios_xr_sw/iosxr_r3.7/routing/configuration/guide/rc37bgp.html#wp1118578

but I don't think you can do it by peer group.

3) No such similar config in IOS-XR afaik.

New Member

prefix-list; clear bgp peer-group Test soft in; no file prompt q

Thank you Maxime for the comments!

1) I asked because in RPL we have only prefix-set option:

(config-rpl)# if destination ?

  in  Member of a set

Not a prefix-list...

2) l think, you are right.  Not clear why Cisco does not support it anymore...

3) Then how can I suppress confirmations?

Destination filename [/compactflash:/PrefixFilters/CUST_AS-TEST-in.prefixlist]?

Copy : Destination exists, overwrite ?[confirm]                                       

--

Dimitry

Cisco Employee

prefix-list; clear bgp peer-group Test soft in; no file prompt q

You can test on multiple prefix sets like this:

route-policy testme

  if destination in test or destination in TEST then

    set med 100

  endif

end-policy

or

route-policy test

  if destination in test then

    set med 100

  elseif destination in TEST then

    set med 100

  endif

end-policy

the clearing of the neighor/soft is not required because RPL will automatically do that.

A change in the prefix set will either do one of the following:

if peer is REFRESH capable, we will request a full download to reprogram the bgp table.

if soft reconfig is configured on the peer, then a full copy of the bgp table is stored and we'll use that for application of the modified RPL. Soft reconfig is useful for non refresh capable neighbors but cost more memory obviously.

if neither then the peering will restart.

See also some good docu on RPL here:

https://supportforums.cisco.com/docs/DOC-22031

xander

Xander Thuijs CCIE #6775 Principal Engineer ASR9000, CRS, NCS6000 & IOS-XR
New Member

prefix-list; clear bgp peer-group Test soft in; no file prompt q

Thank you Alexander for your reply. It is the good RPL description and I've got the idea of REFRESH capable peer.

BUT, I still don't find the answer on my 3-d question:

In classic IOS we have the command: no file prompt quiet

I don't see it in IOS-XR.  What is the command for IOS-XR?

I need it for the operation like this:

copy ftp://**:***@216.*.*.*/CUST_AS-TEST-in.prefixlist compactflash:/PrefixFilters/CUST_AS-TEST-in.prefixlist

Wed Apr 18 12:02:00.936 UTC

Destination filename [/compactflash:/PrefixFilters/CUST_AS-TEST-in.prefixlist]?  !!!!   I don't need this question

Copy : Destination exists, overwrite ?[confirm]                                                   !!!!   I don't need this question

Accessing ftp://*:*@216.*.*.*/CUST_AS-TEST-in.prefixlist

C

584 bytes copied in      0 sec

How can I suppress confirmations like this?

Destination filename [/compactflash:/PrefixFilters/CUST_AS-TEST-in.prefixlist]?

Copy : Destination exists, overwrite ?[confirm]

--

Dimitry

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