Unsuppress-Map

Scenario to verify BGP peer-group unsuppress-map inheritance. When unsuppress-map is configured on a peer-group, members selectively receive specific routes that are otherwise suppressed by aggregate-address summary-only.

Test iBGP - Peer-group summary-only suppresses specific routes

Description

Aggregate-address summary-only suppresses specific routes. DUT0 has 192.168.1.0/24 and 192.168.2.0/24 and creates aggregate 192.168.0.0/16. DUT1 (member of peer-group) receives only the aggregate.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces dummy dum0 address 192.168.1.1/24
set interfaces dummy dum1 address 192.168.2.1/24
set interfaces ethernet eth0 address 10.10.0.100/24
set protocols bgp 20 aggregate-address 192.168.0.0/16 summary-only
set protocols bgp 20 neighbor peer peer-group MYGROUP
set protocols bgp 20 neighbor peer remote-address 10.10.0.200
set protocols bgp 20 neighbor peer remote-as 20
set protocols bgp 20 peer-group MYGROUP remote-as 20
set protocols bgp 20 redistribute connected
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 2: Set the following configuration in DUT1 :

set interfaces ethernet eth0 address 10.10.0.200/24
set protocols bgp 20 neighbor peer remote-address 10.10.0.100
set protocols bgp 20 neighbor peer remote-as 20
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Attention

Verify iBGP session establishes.

Step 3: Run command protocols bgp show ip summary at DUT0 and check if output matches the following regular expressions:

10.10.0.200.*Established
Show output
IPv4 Unicast Summary:
BGP router identifier 192.168.2.1, local AS number 20 VRF default vrf-id 0
BGP table version 4
RIB entries 6, using 768 bytes of memory
Peers 1, using 24 KiB of memory
Peer groups 1, using 64 bytes of memory

Neighbor        LocalAddr       V         AS   MsgRcvd   MsgSent   TblVer  InQ OutQ  Up/Down        State   PfxRcd   PfxSnt Desc
10.10.0.200     10.10.0.100     4         20         3         6        4    0    0 00:00:01  Established        0        2 FRRouting/10.4.1

Total number of neighbors 1

Attention

Verify DUT1 receives the aggregate route 192.168.0.0/16.

Step 4: Run command protocols bgp show ip at DUT1 and check if output matches the following regular expressions:

192.168.0.0/16
Show output
BGP table version is 2, local router ID is 10.10.0.200, vrf id 0
Default local pref 100, local AS 20
local address -
Status codes:  s suppressed, d damped, h history, u unsorted, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

     Network          Next Hop            Metric LocPrf Weight Path
 *ui 10.10.0.0/24     10.10.0.100              0    100      0 ?
 *ui 192.168.0.0/16   10.10.0.100              0    100      0 ?

Displayed 2 routes and 2 total paths

Test iBGP - Peer-group unsuppress-map leaks specific routes

Description

Test that unsuppress-map configured on a peer-group selectively leaks suppressed routes. DUT0 has aggregate-address summary-only and unsuppress-map on the peer-group that permits 192.168.1.0/24. DUT1 (member of peer-group) receives both the aggregate 192.168.0.0/16 and 192.168.1.0/24, while 192.168.2.0/24 stays suppressed.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces dummy dum0 address 192.168.1.1/24
set interfaces dummy dum1 address 192.168.2.1/24
set interfaces ethernet eth0 address 10.10.0.100/24
set protocols bgp 20 aggregate-address 192.168.0.0/16 summary-only
set protocols bgp 20 neighbor peer peer-group MYGROUP
set protocols bgp 20 neighbor peer remote-address 10.10.0.200
set protocols bgp 20 neighbor peer remote-as 20
set protocols bgp 20 peer-group MYGROUP remote-as 20
set protocols bgp 20 peer-group MYGROUP unsuppress-map UNSUPPRESS
set protocols bgp 20 redistribute connected
set protocols ip prefix-list LEAK-NET1 rule 1 action permit
set protocols ip prefix-list LEAK-NET1 rule 1 prefix 192.168.1.0/24
set protocols route-map UNSUPPRESS rule 1 action permit
set protocols route-map UNSUPPRESS rule 1 match ip address prefix-list LEAK-NET1
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 2: Set the following configuration in DUT1 :

set interfaces ethernet eth0 address 10.10.0.200/24
set protocols bgp 20 neighbor peer remote-address 10.10.0.100
set protocols bgp 20 neighbor peer remote-as 20
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Attention

Verify iBGP session establishes.

Step 3: Run command protocols bgp show ip summary at DUT0 and check if output matches the following regular expressions:

10.10.0.200.*Established
Show output
IPv4 Unicast Summary:
BGP router identifier 192.168.2.1, local AS number 20 VRF default vrf-id 0
BGP table version 4
RIB entries 6, using 768 bytes of memory
Peers 1, using 24 KiB of memory
Peer groups 1, using 64 bytes of memory

Neighbor        LocalAddr       V         AS   MsgRcvd   MsgSent   TblVer  InQ OutQ  Up/Down        State   PfxRcd   PfxSnt Desc
10.10.0.200     10.10.0.100     4         20         3         7        4    0    0 00:00:01  Established        0        3 FRRouting/10.4.1

Total number of neighbors 1

Attention

Verify DUT1 receives the aggregate 192.168.0.0/16 and 192.168.1.0/24 (unsuppressed via peer-group).

Step 4: Run command protocols bgp show ip at DUT1 and check if output matches the following regular expressions:

192.168.0.0/16 [\s\S]*192.168.1.0/24
Show output
BGP table version is 3, local router ID is 10.10.0.200, vrf id 0
Default local pref 100, local AS 20
local address -
Status codes:  s suppressed, d damped, h history, u unsorted, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

     Network          Next Hop            Metric LocPrf Weight Path
 *ui 10.10.0.0/24     10.10.0.100              0    100      0 ?
 *ui 192.168.0.0/16   10.10.0.100              0    100      0 ?
 *ui 192.168.1.0/24   10.10.0.100              0    100      0 ?

Displayed 3 routes and 3 total paths