Свичи DGS-3627G и DGS-3612G с прошивками от 2.84.B10 до 3.00.B30 около трех десятков.
С другой стороны - Cisco Catalyst 6500
Поcтоянно падают BGP сессии между Cisco и D-Link.
К этой же Cisco, подключенное оборудование других вендоров работает нормально.
В логах D-Link постоянно вижу следующее
Код:
31729 2014-05-11 20:22:02 INFO(6) [BGP(1):] BGP connection is successfully established Peer:<10.110.0.110>.
31728 2014-05-11 20:21:56 WARN(4) [BGP(7):] BGP connection is closed due to Notfy: Code <4> Subcode <0> (Peer:<>).
Настройки D-link:
Код:
BGP neighbor: 10.110.0.110 (External Peer)
-----------------------------------------------
Session State : Enabled
Session Activity : Enabled
Remote AS : 65000
Remote Router ID : 10.110.0.110
BGP State : Established (UP for 21:50:47)
Hold Time : 180 Seconds
Keepalive Interval : 60 Seconds
Advertisement Interval : 30 Seconds
AS Origination Interval : 15 Seconds
Connect Retry Interval : 120 Seconds
EBGP Multihop : 1
Weight : 0
Next Hop Self : Disabled
Remove Private As : Disabled
AllowAS In : Disabled
Address Family IP v4 Unicast
IPv4 Unicast : Advertised and Received
Soft Reconfiguration Inbound : Disabled
Send Community : None
Default Originate : Disabled
Outbound Route Filter (ORF) type (64) Prefix list:
Send Mode : Disabled
Receive Mode : Disabled
Prefix Max Count : 12000
Prefix Warning Threshold : 75
Prefix Warning Only : Disabled
В логах каталиста такое:
Код:
056350: May 11 20:21:47.549 EET: %BGP-5-ADJCHANGE: neighbor 10.110.0.62 Down BGP Notification sent
056351: May 11 20:21:47.549 EET: %BGP-3-NOTIFICATION: sent to neighbor 10.110.0.62 4/0 (hold time expired) 0 bytes
056352: May 11 20:21:53.797 EET: %BGP-5-ADJCHANGE: neighbor 10.110.0.62 Up
Настройки Cisco
Код:
BGP neighbor is 10.110.0.62, remote AS 65008, external link
Description: gagarina
BGP version 4, remote router ID 10.110.0.62
BGP state = Established, up for 21:44:36
Last read 00:00:48, last write 00:00:36, hold time is 180, keepalive interval is 60 seconds
Configured hold time is 180, keepalive interval is 60 seconds
Neighbor capabilities:
Route refresh: advertised and received(new)
Address family IPv4 Unicast: advertised and received
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 92 92
Notifications: 90 0
Updates: 0 91
Keepalives: 47463 47463
Route Refresh: 0 0
Total: 47645 47646
Default minimum time between advertisement runs is 30 seconds
For address family: IPv4 Unicast
BGP table version 1100, neighbor version 1100/0
Output queue size : 0
Index 2, Offset 0, Mask 0x4
2 update-group member
NEXT_HOP is always this router
Outbound path policy configured
Route map for outgoing advertisements is bgp-out
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 0 4 (Consumes 192 bytes)
Prefixes Total: 0 4
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: -------- -------
route-map: 37 0
Total: 37 0
Number of NLRIs in the update sent: max 0, min 0
Connections established 91; dropped 90
Last reset 21:44:50, due to BGP Notification sent, hold time expired
External BGP neighbor may be up to 2 hops away.
Connection state is ESTAB, I/O status: 1, unread input bytes: 0
Local host: 10.110.0.110, Local port: 179
Foreign host: 10.110.0.62, Foreign port: 1979
Enqueued packets for retransmit: 0, input: 0 mis-ordered: 0 (0 bytes)
Event Timers (current time is 0xA90109EC):
Timer Starts Wakeups Next
Retrans 1307 0 0x0
TimeWait 0 0 0x0
AckHold 1318 1290 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 0 0 0x0
DeadWait 0 0 0x0
iss: 213364378 snduna: 213389257 sndnxt: 213389257 sndwnd: 8192
irs: 3566535709 rcvnxt: 3566560823 rcvwnd: 15510 delrcvwnd: 874
SRTT: 300 ms, RTTO: 303 ms, RTV: 3 ms, KRTT: 0 ms
minRTT: 0 ms, maxRTT: 300 ms, ACK hold: 200 ms
Flags: passive open, retransmission timeout, nagle, gen tcbs
Timestamp option used
Datagrams (max data segment is 1424 bytes):
Rcvd: 2625 (out of order: 0), with data: 1318, total data bytes: 25113
Sent: 2614 (retransmit: 0), with data: 1306, total data bytes: 24878