R3#sho ip bg neighbors
BGP neighbor is 2.2.2.2, remote AS 200, internal link
BGP version 4, remote router ID 2.2.2.2
BGP state = Established, up for 00:02:57
Last read 00:00:56, hold time is 180, keepalive interval is 60 seconds
Neighbor capabilities:
Route refresh: advertised and received(old & new)
Address family IPv4 Unicast: advertised and received
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 8 8
Notifications: 0 0
Updates: 10 12
Keepalives: 300 300
Route Refresh: 2 1
Total: 320 321
Default minimum time between advertisement runs is 5 seconds
For address family: IPv4 Unicast
BGP table version 29, neighbor version 29
Index 1, Offset 0, Mask 0x2
Route-Reflector Client //在RR可以看到R2和R4是client
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 1 1 (Consumes 36 bytes)
Prefixes Total: 1 1
Implicit Withdraw: 0 0
Explicit Withdraw: 0 0
Used as bestpath: n/a 1
Used as multipath: n/a 0
!
!
SRTT: 197 ms, RTTO: 984 ms, RTV: 787 ms, KRTT: 0 ms
minRTT: 4 ms, maxRTT: 300 ms, ACK hold: 200 ms
Flags: higher precedence, nagle
Datagrams (max data segment is 536 bytes):
Rcvd: 9 (out of order: 0), with data: 7, total data bytes: 199
Sent: 13 (retransmit: 0, fastretransmit: 0), with data: 7, total data bytes: 213
BGP neighbor is 4.4.4.4, remote AS 200, internal link
BGP version 4, remote router ID 4.4.4.4
BGP state = Established, up for 00:02:43
Last read 00:00:43, hold time is 180, keepalive interval is 60 seconds
Neighbor capabilities:
Route refresh: advertised and received(old & new)
Address family IPv4 Unicast: advertised and received
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 8 8
Notifications: 0 0
Updates: 9 14
Keepalives: 300 300
Route Refresh: 2 3
Total: 319 325
Default minimum time between advertisement runs is 5 seconds
For address family: IPv4 Unicast
BGP table version 29, neighbor version 29
Index 2, Offset 0, Mask 0x4
Route-Reflector Client
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 1 1 (Consumes 36 bytes)
Prefixes Total: 1 1
Implicit Withdraw: 0 0
Explicit Withdraw: 0 0
Used as bestpath: n/a 1
Used as multipath: n/a 0
!
!
!
iss: 3706214856 snduna: 3706215070 sndnxt: 3706215070 sndwnd: 16171
irs: 807270701 rcvnxt: 807270901 rcvwnd: 16185 delrcvwnd: 199
SRTT: 186 ms, RTTO: 1079 ms, RTV: 893 ms, KRTT: 0 ms
minRTT: 4 ms, maxRTT: 352 ms, ACK hold: 200 ms
Flags: higher precedence, nagle
Datagrams (max data segment is 536 bytes):
Rcvd: 7 (out of order: 0), with data: 5, total data bytes: 199
Sent: 10 (retransmit: 0, fastretransmit: 0), with data: 6, total data bytes: 21