BGP_Router: unhandled major event code 128

Problemy związane z routingiem
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lukis
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Posty: 46
Rejestracja: 30 lip 2014, 12:27

BGP_Router: unhandled major event code 128

#1

#1 Post autor: lukis »

Witam,

Mam 2 routery 2951 każdy z nich po jednej sesji z operatorem i iBGP między nimi.
Na jednym routerze dostaję setki takich logów
Mar 28 09:58:49.771: BGP: topo global:IPv4 Multicast:base Scanning routing tables
Mar 28 09:58:49.879: BGP_Router: unhandled major event code 128, minor 0
Mar 28 09:58:50.075: BGP_Router: unhandled major event code 128, minor 0
Mar 28 09:58:50.443: BGP_Router: unhandled major event code 128, minor 0
Mar 28 09:58:52.659: BGP_Router: unhandled major event code 128, minor 0
Konfiguracja BGP na tym routerze:

Kod: Zaznacz cały

router bgp 4xxxx
 bgp log-neighbor-changes
 bgp default local-preference 200
 network 195.xxx.xxx.xxx
 network 195.xxx.yyy.xxx
 neighbor 195.xxx.xxx.xxx remote-as 4xxxx
 neighbor 195.xxx.xxx.xxx next-hop-self
 neighbor 217.xxx.xxx.xxx remote-as 3xxxx
 neighbor 217.xxx.xxx.xxx route-map yyy_IN in
 neighbor 217.xxx.xxx.xxx route-map yyy_OUT out

Kod: Zaznacz cały

BGP_1#show ip bgp summary
BGP router identifier 217.xxx.xxx.xxx, local AS number 4xxxx
BGP table version is 181265849, main routing table version 181265849
637461 network entries using 91794384 bytes of memory
637463 path entries using 50997040 bytes of memory
259006/154798 BGP path/bestpath attribute entries using 37296864 bytes of memory
92579 BGP AS-PATH entries using 4098310 bytes of memory
3087 BGP community entries using 212488 bytes of memory
181 BGP extended community entries using 5818 bytes of memory
187 BGP route-map cache entries using 6732 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 184411636 total bytes of memory
BGP activity 9787917/9150455 prefixes, 28900668/28263204 paths, scan interval 60 secs

Neighbor        V           AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
195.xxx.xxx.xxx 4        43173 5420392 30257501 181265849    0    0 15w2d         376
217.xxx.xxx.xxx  4        35434 2188077   27750 181265704    0    0 1w1d       637085
Gdzieś znalazłem że to jest związane z default route. Nie dostaję jej od operatora, mam ją tylko przez iBGP.

Co znaczą te logi? Bo mało informacji na ten temat w internecie.

Wersja IOS 15.0(1r)M16

jwidel
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Posty: 16
Rejestracja: 14 gru 2016, 00:26

Re: BGP_Router: unhandled major event code 128

#2

#2 Post autor: jwidel »

BGP_Router: unhandled major event code 128, minor 0
Z tego co pamietam to dość generalny wyjątek, którym router rzuca jak nie rozumie pakietu. W większości dzieje się tak, jak się routery nie dogadją odnośnie opcji BGP czy AFI/SAFI.
Użyj:
# show bgp ipv4 unicast neighbor x.x.x.x
# debug bgp ipv4 unicast x.x.x.x updates

lukis
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Posty: 46
Rejestracja: 30 lip 2014, 12:27

Re: BGP_Router: unhandled major event code 128

#3

#3 Post autor: lukis »

BGP_1#show bgp ipv4 unicast neighbors 217.xxx.xxx.145
BGP neighbor is 217.xxx.xxx.145, remote AS 3xxxx, external link
BGP version 4, remote router ID 217.yyy.yyy.117
BGP state = Established, up for 1w2d
Last read 00:00:02, last write 00:00:16, hold time is 90, keepalive interval is 30 seconds
Neighbor sessions:
1 active, is not multisession capable (disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and received
Address family IPv4 Unicast: advertised and received
Graceful Restart Capability: received
Remote Restart timer is 120 seconds
Address families advertised by peer:
none
Enhanced Refresh Capability: advertised
Multisession Capability:
Stateful switchover support enabled: NO for session 1
Message statistics:
InQ depth is 0
OutQ depth is 0

Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 2 2208880
Keepalives: 28308 27505
Route Refresh: 0 0
Total: 28311 2236386
Default minimum time between advertisement runs is 30 seconds

For address family: IPv4 Unicast
Session: 217.xxx.xxx.145
BGP table version 181404809, neighbor version 181404797/181404809
Output queue size : 0
Index 32, Advertise bit 0
32 update-group member
Inbound path policy configured
Outbound path policy configured
Route map for incoming advertisements is PIRXNET_FIBER_IN
Route map for outgoing advertisements is PIRXNET_FIBER_OUT
Slow-peer detection is disabled
Slow-peer split-update-group dynamic is disabled
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 2 637880 (Consumes 51030400 bytes)
Prefixes Total: 2 5934997
Implicit Withdraw: 0 4925691
Explicit Withdraw: 0 371426
Used as bestpath: n/a 637880
Used as multipath: n/a 0

Outbound Inbound
Local Policy Denied Prefixes: -------- -------
route-map: 0 74
Other Policies: 5157379 n/a
Total: 5157379 74
Number of NLRIs in the update sent: max 2, min 0
Last detected as dynamic slow peer: never
Dynamic slow peer recovered: never
Refresh Epoch: 1
Last Sent Refresh Start-of-rib: never
Last Sent Refresh End-of-rib: never
Last Received Refresh Start-of-rib: never
Last Received Refresh End-of-rib: never
Sent Rcvd
Refresh activity: ---- ----
Refresh Start-of-RIB 0 0
Refresh End-of-RIB 0 0

Address tracking is enabled, the RIB does have a route to 217.xxx.xxx.145
Connections established 5; dropped 4
Last reset 1w2d, due to Active open failed
Transport(tcp) path-mtu-discovery is enabled
Graceful-Restart is disabled
Connection state is ESTAB, I/O status: 1, unread input bytes: 0
Connection is ECN Disabled, Mininum incoming TTL 0, Outgoing TTL 1
Local host: 217.xxx.xxx.150, Local port: 52953
Foreign host: 217.xxx.xxx.145, Foreign port: 179
Connection tableid (VRF): 0
Maximum output segment queue size: 50

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

Event Timers (current time is 0x520DF15EC):
Timer Starts Wakeups Next
Retrans 28320 8 0x0
TimeWait 0 0 0x0
AckHold 970036 854427 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 773021 773020 0x520DF1913
DeadWait 0 0 0x0
Linger 0 0 0x0
ProcessQ 0 0 0x0

iss: 913017566 snduna: 913555557 sndnxt: 913555557
irs: 4068862507 rcvnxt: 4266886252

sndwnd: 16384 scale: 0 maxrcvwnd: 16384
rcvwnd: 16337 scale: 0 delrcvwnd: 47

SRTT: 1000 ms, RTTO: 1003 ms, RTV: 3 ms, KRTT: 0 ms
minRTT: 0 ms, maxRTT: 1000 ms, ACK hold: 200 ms
Status Flags: active open
Option Flags: nagle, path mtu capable
IP Precedence value : 6

Datagrams (max data segment is 1460 bytes):
Rcvd: 1035488 (out of order: 33), with data: 1011621, total data bytes: 198023744
Sent: 1039042 (retransmit: 8, fastretransmit: 0, partialack: 0, Second Congestion: 0), with data: 28311, total data bytes: 537990

Packets received in fast path: 0, fast processed: 0, slow path: 0
fast lock acquisition failures: 0, slow path: 0
TCP Semaphore 0x1407D164 FREE
BGP_1#show bgp ipv4 unicast neighbors 195.xxx.xxx.xxx
BGP neighbor is 195.xxx.xxx.xxx, remote AS 4xxx, internal link
BGP version 4, remote router ID 195.xxx.xxx.xxx
BGP state = Established, up for 15w3d
Last read 00:00:00, last write 00:00:00, hold time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable (disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and received
Address family IPv4 Unicast: advertised and received
Enhanced Refresh Capability: advertised and received
Multisession Capability:
Stateful switchover support enabled: NO for session 1
Message statistics:
InQ depth is 0
OutQ depth is 0

Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 30316025 5428065
Keepalives: 17 150
Route Refresh: 0 0
Total: 30316043 5428216
Default minimum time between advertisement runs is 0 seconds

For address family: IPv4 Unicast
Session: 195.xxx.xxx.xxx
BGP table version 181405022, neighbor version 181405022/0
Output queue size : 0
Index 30, Advertise bit 1
30 update-group member
NEXT_HOP is always this router for eBGP paths
Slow-peer detection is disabled
Slow-peer split-update-group dynamic is disabled
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 637884 391 (Consumes 30800 bytes)
Prefixes Total: 60655271 7091289
Implicit Withdraw: 54320031 1224999
Explicit Withdraw: 5697356 5865899
Used as bestpath: n/a 383
Used as multipath: n/a 0

Outbound Inbound
Local Policy Denied Prefixes: -------- -------
Bestpath from this peer: 6969200 n/a
Total: 6969200 0
Number of NLRIs in the update sent: max 1087, min 0
Last detected as dynamic slow peer: never
Dynamic slow peer recovered: never
Refresh Epoch: 1
Last Sent Refresh Start-of-rib: never
Last Sent Refresh End-of-rib: never
Last Received Refresh Start-of-rib: never
Last Received Refresh End-of-rib: never
Sent Rcvd
Refresh activity: ---- ----
Refresh Start-of-RIB 0 0
Refresh End-of-RIB 0 0

Address tracking is enabled, the RIB does have a route to 195.xxx.xxx.xxx
Connections established 20; dropped 19
Last reset 15w3d, due to Active open failed
Transport(tcp) path-mtu-discovery is enabled
Graceful-Restart is disabled
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: 195.xxx.xxx.201, Local port: 31561
Foreign host: 195.xxx.xxx.xxx, Foreign port: 179
Connection tableid (VRF): 0
Maximum output segment queue size: 50

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

Event Timers (current time is 0x520DF7790):
Timer Starts Wakeups Next
Retrans 9923783 1919 0x0
TimeWait 0 0 0x0
AckHold 3919145 2491364 0x0
SendWnd 17 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 9276823 9276822 0x520DF780F
DeadWait 0 0 0x0
Linger 0 0 0x0
ProcessQ 0 0 0x0

iss: 1730429874 snduna: 79458708 sndnxt: 79458708
irs: 1939231879 rcvnxt: 2282858259

sndwnd: 15331 scale: 0 maxrcvwnd: 16384
rcvwnd: 16337 scale: 0 delrcvwnd: 47

SRTT: 1000 ms, RTTO: 1003 ms, RTV: 3 ms, KRTT: 0 ms
minRTT: 0 ms, maxRTT: 5344 ms, ACK hold: 200 ms
Status Flags: active open
Option Flags: nagle, path mtu capable
IP Precedence value : 6

Datagrams (max data segment is 1460 bytes):
Rcvd: 12954077 (out of order: 2330), with data: 4234893, total data bytes: 343626379
Sent: 14447923 (retransmit: 1936, fastretransmit: 81, partialack: 43, Second Congestion: 5), with data: 11413502, total data bytes: 2644093185

Packets received in fast path: 0, fast processed: 0, slow path: 0
fast lock acquisition failures: 0, slow path: 0
TCP Semaphore 0x1407D474 FREE
niestety debug nic nie pokazuje bo zadnych update niema a nie moge zrobić clear

lbromirs
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Posty: 4101
Rejestracja: 30 lis 2006, 08:44

Re: BGP_Router: unhandled major event code 128

#4

#4 Post autor: lbromirs »

lukis pisze:Witam,

Mam 2 routery 2951 każdy z nich po jednej sesji z operatorem i iBGP między nimi.
Na jednym routerze dostaję setki takich logów

Kod: Zaznacz cały

Mar 28 09:58:49.771: BGP: topo global:IPv4 Multicast:base Scanning routing tables
Mar 28 09:58:49.879: BGP_Router: unhandled major event code 128, minor 0
Mar 28 09:58:50.075: BGP_Router: unhandled major event code 128, minor 0
Mar 28 09:58:50.443: BGP_Router: unhandled major event code 128, minor 0
Mar 28 09:58:52.659: BGP_Router: unhandled major event code 128, minor 0
...a nie bawiłeś się aby jakimiś VRFami na tym routerze?

lukis
member
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Posty: 46
Rejestracja: 30 lip 2014, 12:27

Re: BGP_Router: unhandled major event code 128

#5

#5 Post autor: lukis »

Nie, żadnych vrf, ale... były dwie statyczne trasy, które w tym momencie racji bytu nie mają (nie było ich nawet w tablicy routingu ponieważ mają wysoki AD).

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