Cisco ASR 1000 Series Configuration Guide

Feature InformationReleasesFeature Name
The TCP MSS Adjust feature
enables the configuration of the
maximum segment size (MSS) for
transient packets that traverse a
device, specifically TCP segments
in the SYN bit set.
In 12.2(4)T, this feature was
introduced.
In 12.2(8)T, the command that was
introduced by this feature was
changed from ip adjust-mss to ip
tcp adjust-mss.
In 12.2(28)SB and 12.2(33)SRA,
this feature was enhanced to be
configurable on subinterfaces.
The following command was
introduced by this feature: ip tcp
adjust-mss.
12.2(4)T
12.2(8)T
12.2(18)ZU2
12.2(28)SB
12.2(33)SRA
12.2(33)SXH
15.0(1)S
TCP MSS Adjust
The TCP Show Extension feature
introduces the capability to display
addresses in IP format instead of
hostname format and to display the
VRF table associated with the
connection.
The following command was
modified by this feature: show tcp
brief.
12.2(31)SB2
12.4(2)T
TCP Show Extension
The TCP Window Scaling feature
adds support for the Window
Scaling option in RFC 1323. A
larger window size is
recommended to improve TCP
performance in network paths with
large bandwidth, long-delay
characteristics that are called Long
Fat Networks (LFNs). This TCP
Window Scaling enhancement
provides that support.
The following command was
introduced or modified by this
feature: ip tcp window-size.
12.2(8)T
12.2(31)SB2
TCP Window Scaling
IP Application Services Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 1000)
46
Configuring TCP
Feature Information for TCP

Cisco ASR 1000 Series Specifications

General

Series	ASR 1000
Category	Network Router
Operating System	Cisco IOS XE
Memory	Up to 64 GB
Interfaces	10 Gigabit Ethernet
Power Supply	AC or DC options
Dimensions	Varies by model
Encryption	IPsec, SSL
Storage	Varies by model
Operating Temperature	32°F to 104°F (0°C to 40°C)
Humidity	5% to 95% non-condensing
MTBF	Varies by model