Cisco Cisco ASA 5580 Adaptive Security Appliance Leaflet

4-38

思科 ASA 系列命令参考，S 命令

第 4 章 show bgp 至 show cpu 命令

show bgp ipv6 neighbors

Received 31306 messages, 20 notifications, 0 in queue

Sent 14298 messages, 1 notifications, 0 in queue

Default minimum time between advertisement runs is 30 seconds

For address family: IPv6 Unicast

BGP table version 21880, neighbor version 21880

Index 1, Offset 0, Mask 0x2

Route refresh request: received 0, sent 0

Community attribute sent to this neighbor

Outbound path policy configured

Incoming update prefix filter list is bgp-in

Outgoing update prefix filter list is aggregate

Route map for outgoing advertisements is uni-out

77 accepted prefixes consume 4928 bytes

Prefix advertised 4303, suppressed 0, withdrawn 1328

Number of NLRIs in the update sent: max 1, min 0

1 history paths consume 64 bytes

Connections established 22; dropped 21

Last reset 13:47:05, due to BGP Notification sent, hold time expired

Connection state is ESTAB, I/O status: 1, unread input bytes: 0

Local host: 3FFE:700:20:1::12, Local port: 55345

Foreign host: 3FFE:700:20:1::11, Foreign port: 179

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

Event Timers (current time is 0x1A0D543C):

Timer Starts Wakeups Next

Retrans 1218 5 0x0

TimeWait 0 0 0x0

AckHold 3327 3051 0x0

SendWnd 0 0 0x0

KeepAlive 0 0 0x0

GiveUp 0 0 0x0

PmtuAger 0 0 0x0

DeadWait 0 0 0x0

iss: 1805423033 snduna: 1805489354 sndnxt: 1805489354 sndwnd: 15531

irs: 821333727 rcvnxt: 821591465 rcvwnd: 15547 delrcvwnd: 837

SRTT: 300 ms, RTTO: 303 ms, RTV: 3 ms, KRTT: 0 ms

minRTT: 8 ms, maxRTT: 300 ms, ACK hold: 200 ms

Flags: higher precedence, nagle

Datagrams (max data segment is 1420 bytes):

Rcvd: 4252 (out of order: 0), with data: 3328, total data bytes: 257737

Sent: 4445 (retransmit: 5), with data: 4445, total data bytes: 244128

下表描述屏幕上展示的重要字段。

表

4-16

show bgp ipv6 community-list

字段

说明

BGP neighbor

BGP 邻居的 IP 地址及其自主系统编号。如果邻居位于与路由器相同的自主系
统中，则它们之间的链路是内部链路；否则，将该链路视为外部链路。

remote AS

邻居的自主系统。

internal link

表示此对等设备为内部边界网关协议

(iBGP) 对等设备。

BGP version

正在用于与远程路由器通信的

BGP 版本；还指定邻居的路由器 ID（IP 地址）。

remote router ID 一个 32 位数字，写为以句点分隔的 4 八位字节（点分十进制格式）。
BGP state

此

BGP 连接的内部状态。

up for

基本

TCP 连接已存在的时间量。

Last read

BGP 最后从此邻居读取消息的时间。

hold time