Qualche anima pia sa aiutarmi????? Non so proprio quale possa essere il problema!!! Puo' trattarsi di qualche loop del BGP ????
Vi sarei infinitamente grato se qualcuno di voi potesse risolvermi il problema e farmi funzionare la VPN.
Ringrazio anticipatamente tutti.
Di seguito riporto la configurazione e gli output di uno dei due PE :
CISCO2#show running-config
Building configuration...
Current configuration : 5577 bytes
!
version 12.3
.......
!
ip subnet-zero
ip cef
!
!
no ip dhcp use vrf connected
!
!
ip vrf VPNb
rd 1:200
route-target export 1:5678
route-target import 1:5678
!
mpls traffic-eng tunnels
.....
!
interface Tunnel2
description TUNNEL C2-C3
ip unnumbered Loopback0
tunnel destination 70.70.70.70
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng path-option 1 dynamic
tunnel mpls traffic-eng auto-bw
no routing dynamic
!
interface Loopback0
ip address 60.60.60.60 255.255.255.255
!
interface GigabitEthernet0/0
ip address 192.168.32.2 255.255.255.0
carrier-delay msec 0
shutdown
duplex auto
speed auto
media-type rj45
negotiation auto
mpls traffic-eng tunnels
diffserv cops
ip rsvp bandwidth 50000 1000
!
interface GigabitEthernet0/1
ip address 192.168.33.1 255.255.255.0
carrier-delay msec 0
duplex auto
speed auto
media-type rj45
negotiation auto
mpls traffic-eng tunnels
diffserv cops
ip rsvp bandwidth 50000 1000
!
interface GigabitEthernet0/0/0
description collegamento in fibra con router Juniper LAB2
ip vrf forwarding VPNb
ip address 192.168.27.2 255.255.255.0
carrier-delay msec 0
negotiation auto
mpls traffic-eng tunnels
diffserv cops
ip rsvp bandwidth 50000 1000
!
interface GigabitEthernet1/0
no switchport
ip address 192.168.18.1 255.255.255.0
carrier-delay msec 0
mpls traffic-eng tunnels
tag-switching ip
ip rsvp bandwidth 1000 1000
!
!
router ospf 1
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
router-id 60.60.60.60
ispf
log-adjacency-changes
timers throttle spf 10 100 100
timers throttle lsa all 10 100 100
timers lsa arrival 80
network 60.60.60.0 0.0.0.255 area 0
network 192.168.0.0 0.0.255.255 area 0
!
router bgp 1
bgp router-id 60.60.60.60
no bgp default ipv4-unicast
no bgp log-neighbor-changes
neighbor 192.168.27.1 remote-as 1
neighbor 192.168.32.1 remote-as 1
neighbor 192.168.33.2 remote-as 1
!
address-family ipv4
redistribute connected
redistribute ospf 1
neighbor 192.168.27.1 activate
neighbor 192.168.32.1 activate
neighbor 192.168.33.2 activate
no auto-summary
no synchronization
network 60.60.60.60
network 192.168.0.0 mask 255.255.0.0
exit-address-family
!
address-family vpnv4
neighbor 192.168.33.2 activate
neighbor 192.168.33.2 send-community extended
exit-address-family
!
address-family ipv4 vrf VPNb
redistribute connected
neighbor 192.168.27.1 remote-as 1
neighbor 192.168.27.1 activate
no auto-summary
no synchronization
exit-address-family
!
no ip classless
!
!
.....
end
CISCO2#show bgp all
For address family: IPv4 Unicast
BGP table version is 133, local router ID is 60.60.60.60
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
* i60.60.60.60/32 192.168.33.2 2 100 0 ?
*> 0.0.0.0 0 32768 ?
*> 70.70.70.70/32 192.168.33.2 2 32768 ?
* i 192.168.33.2 0 100 0 ?
* i192.168.18.0 192.168.33.2 2 100 0 ?
*> 0.0.0.0 0 32768 ?
* i192.168.33.0 192.168.33.2 0 100 0 ?
*> 0.0.0.0 0 32768 ?
For address family: IPv6 Unicast
For address family: VPNv4 Unicast
BGP table version is 67, local router ID is 60.60.60.60
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
Route Distinguisher: 1:200 (default for vrf VPNb)
*>i10.10.10.10/32 192.168.21.1 1 100 0 i
*>i10.80.1.0/24 192.168.27.1 100 0 i
*>i20.20.20.20/32 192.168.27.1 100 0 i
*>i192.168.1.0 192.168.21.1 2 100 0 i
*>i192.168.5.0 192.168.27.1 100 0 i
*>i192.168.21.0 192.168.27.1 100 0 i
*>i192.168.22.0 192.168.21.1 2 100 0 i
*>i192.168.23.0 192.168.21.1 2 100 0 i
*>i192.168.24.0 192.168.21.1 2 100 0 i
*>i192.168.26.0 192.168.27.1 100 0 i
* i192.168.27.0 192.168.27.1 100 0 i
*> 0.0.0.0 0 32768 ?
*>i192.168.29.0 192.168.33.2 0 100 0 ?
*>i192.168.211.0 192.168.21.1 2 100 0 i
For address family: IPv4 Multicast
For address family: IPv6 Multicast
For address family: NSAP Unicast
CISCO2#show ip bgp neighbors
BGP neighbor is 192.168.27.1, remote AS 1, internal link
BGP version 4, remote router ID 0.0.0.0
BGP state = Active
Last read 00:35:06, last write 00:35:06, hold time is 180, keepalive interval is 60 seconds
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 4 3
Notifications: 3 1
Updates: 11 12
Keepalives: 42 30
Route Refresh: 0 0
Total: 60 47
Default minimum time between advertisement runs is 5 seconds
For address family: IPv4 Unicast
BGP table version 133, neighbor version 0/0
Output queue size : 0
Index 1, Offset 0, Mask 0x2
1 update-group member
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 4 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 3; dropped 3
Last reset 00:35:07, due to BGP Notification sent, hold time expired
No active TCP connection
BGP neighbor is 192.168.32.1, remote AS 1, internal link
BGP version 4, remote router ID 0.0.0.0
BGP state = Active
Last read 01:21:10, last write 01:21:10, 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 5 seconds
For address family: IPv4 Unicast
BGP table version 133, neighbor version 0/0
Output queue size : 0
Index 1, Offset 0, Mask 0x2
1 update-group member
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 4 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 192.168.33.2, remote AS 1, internal link
BGP version 4, remote router ID 70.70.70.70
BGP state = Established, up for 01:20:39
Last read 00:00:39, last write 00:00:39, 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
Address family VPNv4 Unicast: advertised and received
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 16 16
Keepalives: 83 83
Route Refresh: 0 0
Total: 100 100
Default minimum time between advertisement runs is 5 seconds
For address family: IPv4 Unicast
BGP table version 133, neighbor version 133/0
Output queue size : 0
Index 1, Offset 0, Mask 0x2
1 update-group member
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 4 4 (Consumes 208 bytes)
Prefixes Total: 15 13
Implicit Withdraw: 1 0
Explicit Withdraw: 10 9
Used as bestpath: n/a 0
Used as multipath: n/a 0
Outbound Inbound
Local Policy Denied Prefixes: -------- -------
NEXT_HOP is us: n/a 1
Bestpath from this peer: 37 n/a
Bestpath from iBGP peer: 15 n/a
Total: 52 1
Number of NLRIs in the update sent: max 0, min 0
For address family: VPNv4 Unicast
BGP table version 67, neighbor version 67/0
Output queue size : 0
Index 2, Offset 0, Mask 0x4
2 update-group member
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 1 1 (Consumes 68 bytes)
Prefixes Total: 4 4
Implicit Withdraw: 2 2
Explicit Withdraw: 1 1
Used as bestpath: n/a 1
Used as multipath: n/a 0
Outbound Inbound
Local Policy Denied Prefixes: -------- -------
Suppressed duplicate: 0 2
Bestpath from this peer: 4 n/a
Bestpath from iBGP peer: 23 n/a
Total: 27 2
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: 192.168.33.1, Local port: 36911
Foreign host: 192.168.33.2, Foreign port: 179
Enqueued packets for retransmit: 0, input: 0 mis-ordered: 0 (0 bytes)
Event Timers (current time is 0x4AD0CC):
Timer Starts Wakeups Next
Retrans 98 0 0x0
TimeWait 0 0 0x0
AckHold 96 73 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 0 0 0x0
DeadWait 0 0 0x0
iss: 2223467522 snduna: 2223470110 sndnxt: 2223470110 sndwnd: 15272
irs: 4221366598 rcvnxt: 4221369182 rcvwnd: 15240 delrcvwnd: 1144
SRTT: 300 ms, RTTO: 303 ms, RTV: 3 ms, KRTT: 0 ms
minRTT: 0 ms, maxRTT: 300 ms, ACK hold: 200 ms
Flags: active open, nagle
IP Precedence value : 6
Datagrams (max data segment is 1436 bytes):
Rcvd: 192 (out of order: 0), with data: 97, total data bytes: 2583
Sent: 174 (retransmit: 0, fastretransmit: 0, partialack: 0, Second Congestion: 0), with data: 98, total data bytes: 2587
