IPv6 BGP routing

April 25, 2007 at 1:48 pm | Posted in BGP, IPv6, Routing | 2 Comments

CE1#

ipv6 unicast-routing
!
!
interface Serial0
 no ip address
 ipv6 address 200A:0:0:10::2/124
 clockrate 4000000
!
router bgp 100
 no synchronization
 bgp log-neighbor-changes
 neighbor 200A:0:0:10::1 remote-as 100
 no auto-summary
 !
 address-family ipv6
 neighbor 200A:0:0:10::1 activate
 exit-address-family
!
PE1#
!
!
ipv6 unicast-routing
!
!
interface FastEthernet0/0
 no ip address
 speed 10
 full-duplex
 ipv6 address 200A:0:0:2::1/64
!
interface Serial0/0
 description IGP link
 no ip address
 ipv6 address 200A:0:0:1::1/124
 no fair-queue
!
interface Serial0/1
 description link to CE1
 no ip address
 ipv6 address 200A:0:0:10::1/124

!
router bgp 100
 no synchronization
 bgp log-neighbor-changes
 neighbor 200A:0:0:2::2 remote-as 300
 neighbor 200A:0:0:10::2 remote-as 100
 no auto-summary
 !
 address-family ipv6
 neighbor 200A:0:0:2::2 activate
 neighbor 200A:0:0:10::2 activate
 network 200A:0:0:1::/124
 exit-address-family
!
P1#
!
ipv6 unicast-routing
!
!
interface FastEthernet0/0
 description P1 to PE1 (e-BGP)
 no ip address
 speed 10
 full-duplex
 ipv6 address 200A:0:0:2::2/64
!
!
router bgp 300
 no synchronization
 bgp log-neighbor-changes
 neighbor 200A:0:0:2::1 remote-as 100
 no auto-summary
 !
 address-family ipv6
 neighbor 200A:0:0:2::1 activate
 exit-address-family

PE1#sh bgp ipv6 summary
BGP router identifier 165.87.1.1, local AS number 100
BGP table version is 2, main routing table version 2
1 network entries and 1 paths using 201 bytes of memory
1 BGP path attribute entries using 60 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP activity 1/0 prefixes, 1/0 paths, scan interval 60 secs

Neighbor        V    AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
200A:0:0:2::2   4   300       5       6        2    0    0 00:01:15        0
200A:0:0:10::2  4   100       5       6        2    0    0 00:01:38        0
P1#sh bgp ipv6 summ
BGP router identifier 165.87.1.2, local AS number 300
BGP table version is 5, main routing table version 5
1 network entries and 1 paths using 201 bytes of memory
1 BGP path attribute entries using 60 bytes of memory
1 BGP AS-PATH entries using 24 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP activity 2/1 prefixes, 2/1 paths, scan interval 60 secs

Neighbor        V    AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
200A:0:0:2::1   4   100      41      39        5    0    0 00:05:53        1
CE1#sh ip bgp summ
BGP router identifier 32.34.1.1, local AS number 100
BGP table version is 1, main routing table version 1

Neighbor        V    AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
200A:0:0:10::1  4   100       9       8        0    0    0 00:04:12 (NoNeg)

CE1#sh ipv6 route
IPv6 Routing Table – 5 entries
Codes: C – Connected, L – Local, S – Static, R – RIP, B – BGP
       U – Per-user Static route
       I1 – ISIS L1, I2 – ISIS L2, IA – ISIS interarea, IS – ISIS summary
       O – OSPF intra, OI – OSPF inter, OE1 – OSPF ext 1, OE2 – OSPF ext 2
       ON1 – OSPF NSSA ext 1, ON2 – OSPF NSSA ext 2
B   200A:0:0:1::/124 [200/0]
     via 200A:0:0:10::1
C   200A:0:0:10::/124 [0/0]
     via ::, Serial0
L   200A:0:0:10::2/128 [0/0]
     via ::, Serial0
L   FE80::/10 [0/0]
     via ::, Null0
L   FF00::/8 [0/0]
     via ::, Null0

CE1#sh bgp ipv6 unicast summary
BGP router identifier 32.34.1.1, local AS number 100
BGP table version is 4, main routing table version 4
1 network entries using 149 bytes of memory
1 path entries using 72 bytes of memory
2/1 BGP path/bestpath attribute entries using 232 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 453 total bytes of memory
BGP activity 2/1 prefixes, 2/1 paths, scan interval 60 secs

Neighbor        V    AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
200A:0:0:10::1  4   100      19      17        4    0    0 00:02:22        1
% NOTE: This command is deprecated. Please use ‘show bgp ipv6 unicast’

CE1#sh bgp ipv6 unicast
BGP table version is 4, local router ID is 32.34.1.1
Status codes: s suppressed, d damped, h history, * valid, > best, i – internal,
              r RIB-failure, S Stale
Origin codes: i – IGP, e – EGP, ? – incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*>i200A:0:0:1::/124 200A:0:0:10::1           0    100      0 i
CE1#sh bgp ipv6 unicast neighbors
BGP neighbor is 200A:0:0:10::1,  remote AS 100, internal link
  BGP version 4, remote router ID 165.87.1.1
  BGP state = Established, up for 00:03:32
  Last read 00:00:32, hold time is 180, keepalive interval is 60 seconds
  Neighbor capabilities:
    Route refresh: advertised and received(old & new)
    Address family IPv4 Unicast: advertised
    Address family IPv6 Unicast: advertised and received
  Message statistics:
    InQ depth is 0
    OutQ depth is 0
                         Sent       Rcvd
    Opens:                  1          1
    Notifications:          0          0
    Updates:                0          1
    Keepalives:             6          6
    Route Refresh:          0          0
    Total:                  7          8
  Default minimum time between advertisement runs is 5 seconds

 For address family: IPv4 Unicast
  BGP table version 1, neighbor version 0/0
  Output queue sizes : 0 self, 0 replicated
  Index 1, Offset 0, Mask 0x2
  1 update-group member
                                 Sent       Rcvd
  Prefix activity:               —-       —-
    Prefixes Current:               0          0
    Prefixes Total:                 0          0
    Implicit Withdraw:              0          0
    Explicit Withdraw:              0          0
    Used as bestpath:             n/a          0
    Used as multipath:            n/a          0

                                   Outbound    Inbound
  Local Policy Denied Prefixes:    ——–    ——-
    Total:                                0          0
  Number of NLRIs in the update sent: max 0, min 0

 For address family: IPv6 Unicast
  BGP table version 2, neighbor version 2/0
  Output queue sizes : 0 self, 0 replicated
  Index 1, Offset 0, Mask 0x2
  1 update-group member
                                 Sent       Rcvd
  Prefix activity:               —-       —-
    Prefixes Current:               0          1 (Consumes 72 bytes)
    Prefixes Total:                 0          1
    Implicit Withdraw:              0          0
    Explicit Withdraw:              0          0
    Used as bestpath:             n/a          1
    Used as multipath:            n/a          0

                                   Outbound    Inbound
  Local Policy Denied Prefixes:    ——–    ——-
    Bestpath from this peer:              1        n/a
    Total:                                1          0
  Number of NLRIs in the update sent: max 0, min 0

  Connections established 1; dropped 0
  Last reset never
Connection state is ESTAB, I/O status: 1, unread input bytes: 0       
Connection is ECN Disabled
Local host: 200A:0:0:10::2, Local port: 179
Foreign host: 200A:0:0:10::1, Foreign port: 11011

Enqueued packets for retransmit: 0, input: 0  mis-ordered: 0 (0 bytes)

Event Timers (current time is 0x5537760):
Timer          Starts    Wakeups            Next
Retrans             6          0             0x0
TimeWait            0          0             0x0
AckHold             6          2             0x0
SendWnd             0          0             0x0
KeepAlive           0          0             0x0
GiveUp              0          0             0x0
PmtuAger            0          0             0x0
DeadWait            0          0             0x0

iss: 3514389540  snduna: 3514389708  sndnxt: 3514389708     sndwnd:  16217
irs:  559465704  rcvnxt:  559465949  rcvwnd:      16140  delrcvwnd:    244

SRTT: 165 ms, RTTO: 1172 ms, RTV: 1007 ms, KRTT: 0 ms
minRTT: 0 ms, maxRTT: 300 ms, ACK hold: 200 ms
Flags: passive open, nagle, gen tcbs
IP Precedence value : 6

Datagrams (max data segment is 1440 bytes):
Rcvd: 11 (out of order: 0), with data: 6, total data bytes: 244
Sent: 8 (retransmit: 0, fastretransmit: 0, partialack: 0, Second Congestion: 0), with data: 8, total data bytes: 495
 

Advertisements

2 Comments »

RSS feed for comments on this post. TrackBack URI

  1. hello mister.. i want to ask about configuring bgp ipv6.
    i have 4 routers with topology like a square.. i config all router with same AS ( private AS ). but unfortunately only two router that advertise each other.. and two other not advertise bgp ipv6 routing information.. But on ipv4 routing all routers advertise rout info.. Would you like to help me??
    Thank before..

  2. Hi Nanta,

    Please check if you have fullmesh iBGP peering between BGP speakers. Alternatively, you can configure router-reflectors. Give me your full config, I should be able to figure out what is wrong with your config.


Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Create a free website or blog at WordPress.com.
Entries and comments feeds.

%d bloggers like this: