Good afternoon,
I have to configured the BGP routing ok. After to check the routing tables i have to applied route-maps and perfix-list to change the local-preference.
Cust1_NY(config-router)#ip prefix-list C4 seq 5 permit 10.2.1.0/24
Cust1_NY(config)#ip prefix-list C5 seq 5 permit 10.2.2.0/24
Cust1_NY(config)#route-map HACIA_C4_C5
Cust1_NY(config-route-map)#match ip address prefix-list C4 C5
Cust1_NY(config-route-map)#set local-preference 300
Cust1_NY(config-route-map)#route-map HACIA_C4_C5
Cust1_NY(config-route-map)#set local-preference 250
Cust1_NY(config)#router bgp 65001
Cust1_NY(config-router)#neighbor 192.168.2.1 route-map HACIA_C4_C5 in
Cust1_SF(config-router)#ip prefix-list C2 seq 5 permit 10.1.1.0/24
Cust1_SF(config)#ip prefix-list C3 seq 5 permit 10.1.2.0/24
Cust1_SF(config)#route-map ENRUTAR_HACIA_C2_C3
Cust1_SF(config-route-map)#match ip address prefix-list C2 C3
Cust1_SF(config-route-map)#set local-preference 300
Cust1_SF(config-route-map)#route-map ENRUTAR_HACIA_C2_C3
Cust1_SF(config-route-map)#set local-preference 200
Cust1_SF(config-router)#neighbor 192.168.1.1 route-map ENRUTAR_HACIA_C2_C3 in
After to apply the changes i will reset the bgp routers
clear ip bgp <neighbor-ip>
The problem is that after to apply the reset the STATE of neighbors between Cust1_SF and Provider_SF
Code:
Cust1_SF#show ip bgp neighbors
BGP neighbor is 192.168.1.1, remote AS 65000, external link
BGP version 4, remote router ID 0.0.0.0
[b]BGP state = Active[/b]
Last read 00:26:15, last write 00:26:15, hold time is 180, keepalive interval is 60 seconds
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 0 0
Notifications: 0 0
Updates: 0 0
Keepalives: 0 0
Route Refresh: 0 0
Total: 0 0
Default minimum time between advertisement runs is 30 seconds
For address family: IPv4 Unicast
BGP table version 54, neighbor version 0/0
Output queue size : 0
Index 2, Offset 0, Mask 0x4
2 update-group member
Inbound path policy configured
Route map for incoming advertisements is ENRUTAR_HACIA_C2_C3
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
Connections established 0; dropped 0
Last reset never
No active TCP connection
BGP neighbor is 192.168.3.1, remote AS 65001, internal link
BGP version 4, remote router ID 192.168.3.1
BGP state = Established, up for 00:34:41
Last read 00:00:41, last write 00:00:41, 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: 4 4
Notifications: 0 0
Updates: 5 17
Keepalives: 143 143
Route Refresh: 0 0
Total: 152 164
Default minimum time between advertisement runs is 0 seconds
For address family: IPv4 Unicast
BGP table version 54, neighbor version 54/0
Output queue size : 0
Index 1, Offset 0, Mask 0x2
1 update-group member
NEXT_HOP is always this router
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 3 5 (Consumes 260 bytes)
Prefixes Total: 3 5
Implicit Withdraw: 0 0
Explicit Withdraw: 0 0
Used as bestpath: n/a 4
Used as multipath: n/a 0
Outbound Inbound
Local Policy Denied Prefixes: -------- -------
Bestpath from this peer: 4 n/a
Total: 4 0
Number of NLRIs in the update sent: max 3, min 1
Connections established 4; dropped 3
Last reset 00:34:43, due to User reset
Connection state is ESTAB, I/O status: 1, unread input bytes: 0
Connection is ECN Disabled, Mininum incoming TTL 0, Outgoing TTL 255
Local host: 192.168.3.2, Local port: 57979
Foreign host: 192.168.3.1, Foreign port: 179
Enqueued packets for retransmit: 0, input: 0 mis-ordered: 0 (0 bytes)
Event Timers (current time is 0x7C46AC):
Timer Starts Wakeups Next
Retrans 38 0 0x0
TimeWait 0 0 0x0
AckHold 37 35 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 0 0 0x0
DeadWait 0 0 0x0
iss: 259962811 snduna: 259963625 sndnxt: 259963625 sndwnd: 15571
irs: 27944054 rcvnxt: 27944931 rcvwnd: 15508 delrcvwnd: 876
SRTT: 298 ms, RTTO: 314 ms, RTV: 16 ms, KRTT: 0 ms
minRTT: 20 ms, maxRTT: 300 ms, ACK hold: 200 ms
Flags: active open, nagle
IP Precedence value : 6
Datagrams (max data segment is 1460 bytes):
Rcvd: 39 (out of order: 0), with data: 37, total data bytes: 876
Sent: 75 (retransmit: 0, fastretransmit: 0, partialack: 0, Second Congestion: 0), with data: 38, total data bytes: 813
[b]Provider_SF#show ip bgp neighbors[/b]
BGP neighbor is 172.16.0.2, remote AS 65000, internal link
BGP version 4, remote router ID 192.168.2.1
BGP state = Established, up for 00:23:51
Last read 00:00:51, last write 00:00:51, 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: 4 4
Notifications: 0 0
Updates: 6 23
Keepalives: 135 135
Route Refresh: 0 0
Total: 145 162
Default minimum time between advertisement runs is 0 seconds
For address family: IPv4 Unicast
BGP table version 70, neighbor version 70/0
Output queue size : 0
Index 2, Offset 0, Mask 0x4
2 update-group member
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 3 8 (Consumes 416 bytes)
Prefixes Total: 3 8
Implicit Withdraw: 0 0
Explicit Withdraw: 0 0
Used as bestpath: n/a 7
Used as multipath: n/a 0
Outbound Inbound
Local Policy Denied Prefixes: -------- -------
Bestpath from this peer: 7 n/a
Total: 7 0
Number of NLRIs in the update sent: max 3, min 1
Connections established 4; dropped 3
Last reset 00:24:00, due to User reset
Connection state is ESTAB, I/O status: 1, unread input bytes: 0
Connection is ECN Disabled, Mininum incoming TTL 0, Outgoing TTL 255
Local host: 172.16.0.1, Local port: 48261
Foreign host: 172.16.0.2, Foreign port: 179
Enqueued packets for retransmit: 0, input: 0 mis-ordered: 0 (0 bytes)
Event Timers (current time is 0x742C80):
Timer Starts Wakeups Next
Retrans 28 0 0x0
TimeWait 0 0 0x0
AckHold 27 11 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 0 0 0x0
DeadWait 0 0 0x0
iss: 3863243704 snduna: 3863244327 sndnxt: 3863244327 sndwnd: 15762
irs: 741909849 rcvnxt: 741910605 rcvwnd: 15629 delrcvwnd: 755
SRTT: 293 ms, RTTO: 352 ms, RTV: 59 ms, KRTT: 0 ms
minRTT: 24 ms, maxRTT: 300 ms, ACK hold: 200 ms
Flags: active open, nagle
IP Precedence value : 6
Datagrams (max data segment is 1460 bytes):
Rcvd: 51 (out of order: 0), with data: 27, total data bytes: 755
Sent: 41 (retransmit: 0, fastretransmit: 0, partialack: 0, Second Congestion: 0), with data: 28, total data bytes: 622
BGP neighbor is 192.168.1.2, remote AS 65001, external link
BGP version 4, remote router ID 0.0.0.0
[b] BGP state = Idle[/b]
Last read 00:00:00, last write 00:00:00, hold time is 180, keepalive interval is 60 seconds
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 0 0
Notifications: 0 0
Updates: 0 0
Keepalives: 0 0
Route Refresh: 0 0
Total: 0 0
Default minimum time between advertisement runs is 30 seconds
For address family: IPv4 Unicast
BGP table version 70, neighbor version 0/0
Output queue size : 0
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
Connections established 0; dropped 0
Last reset never
External BGP neighbor not directly connected.
No active TCP connection
Please i need help. I don't can to change the STATE.
Thanks,
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