Cisco ASR 9000 Series Routing Configuration Guide

Socket not armed for io, armed for read, armed for write
Last write thread event before reset 00:00:00, second last 00:00:00
Last KA expiry before reset 00:00:00, second last 00:00:00
Last KA error before reset 00:00:00, KA not sent 00:00:00
Last KA start before reset 00:00:00, second last 00:00:00
Precedence: internet
Multi-protocol capability received
Neighbor capabilities:
Route refresh: advertised (old + new) and received (old + new)
Graceful Restart (GR Awareness): advertised and received
4-byte AS: advertised and received
Address family IPv4 Unicast: advertised and received
Received 12 messages, 0 notifications, 0 in queue
Sent 12 messages, 0 notifications, 0 in queue
Minimum time between advertisement runs is 0 secs
TCP Maximum Segment Size 500
For Address Family: IPv4 Unicast
BGP neighbor version 4
Update group: 0.2 Filter-group: 0.1 No Refresh request being processed
Route refresh request: received 0, sent 0
0 accepted prefixes, 0 are bestpaths
Cumulative no. of prefixes denied: 0.
Prefix advertised 0, suppressed 0, withdrawn 0
Maximum prefixes allowed 1048576
Threshold for warning message 75%, restart interval 0 min
AIGP is enabled
An EoR was received during read-only mode
Last ack version 4, Last synced ack version 0
Outstanding version objects: current 0, max 0
Additional-paths operation: None
Send Multicast Attributes
The following example shows how to verify the TCP MSS configuration:
RP/0/0/CPU0:ios#show bgp neighbor 10.0.0.2 configuration
neighbor 10.0.0.2
remote-as 1 []
tcp-mss 400 [n:n1]
address-family IPv4 Unicast []
The following example shows how to display TCP connection endpoints information:
RP/0/0/CPU0:ios#show tcp brief
PCB VRF-ID Recv-Q Send-Q Local Address Foreign Address State
0x08789b28 0x60000000 0 0 :::179 :::0 LISTEN
0x08786160 0x00000000 0 0 :::179 :::0 LISTEN
0xecb0c9f8 0x60000000 0 0 10.0.0.1:12404 10.0.0.2:179 ESTAB
0x0878b168 0x60000000 0 0 11.0.0.1:179 11.0.0.2:61177 ESTAB
0xecb0c6b8 0x60000000 0 0 0.0.0.0:179 0.0.0.0:0 LISTEN
0x08781590 0x00000000 0 0 0.0.0.0:179 0.0.0.0:0 LISTEN
The following example shows how to display TCP connection information for a specific PCB value:
RP/0/0/CPU0:ios#show tcp pcb 0xecb0c9f8
Connection state is ESTAB, I/O status: 0, socket status: 0
Established at Sun Dec 7 11:49:39 2014
PCB 0xecb0c9f8, SO 0xecb01b68, TCPCB 0xecb01d78, vrfid 0x60000000,
Pak Prio: Medium, TOS: 192, TTL: 255, Hash index: 1322
Local host: 10.0.0.1, Local port: 12404 (Local App PID: 19840)
Foreign host: 10.0.0.2, Foreign port: 179
Current send queue size in bytes: 0 (max 24576)
Current receive queue size in bytes: 0 (max 32768) mis-ordered: 0 bytes
Current receive queue size in packets: 0 (max 0)
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
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Implementing BGP
Verify Per Neighbor TCP MSS: Examples

Cisco ASR 9000 Series Specifications

General

Series	ASR 9000
Category	Network Router
Modular Design	Yes
Redundancy	Yes (Hardware and Software)
Operating System	Cisco IOS XR
Interfaces/Ports	10G, 40G, 100G, 400G Ethernet
Expansion Slots	Varies by model
Routing Protocol	BGP, OSPF, IS-IS, EIGRP
Management	CLI, SNMP, NETCONF
Power Supply	Redundant
Port Density	Varies by model
Power Supply Options	AC, DC
Memory	Varies by model
Storage	Varies by model
Dimensions	Varies by model
Weight	Varies by model