Release Notes for the Cisco ASR 900 Series Routers
New Features in Cisco IOS XE 3.7S
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Table of Contents

New Features in Cisco IOS XE 3.7S Releases

New Hardware Features in CiscoIOSXERelease 3.7(5)S

New Hardware Features in CiscoIOSXERelease 3.7(4)S

New Hardware Features in CiscoIOSXERelease 3.7(3)S

New Hardware Features in CiscoIOSXERelease 3.7(2)S

New Hardware Features in CiscoIOSXERelease 3.7(1)aS

New Hardware Features in CiscoIOSXERelease 3.7(0)S

New Software Features in CiscoIOSXERelease 3.7(5)S

New Software Features in CiscoIOSXERelease 3.7(4)S

New Software Features in CiscoIOSXERelease 3.7(3)S

New Software Features in CiscoIOSXERelease 3.7(2)S

New Software Features in CiscoIOSXERelease 3.7(1)aS

New Software Features in CiscoIOSXERelease 3.7(0)S

New Features in Cisco IOS XE 3.7S Releases

This chapter provides information about the new features introduced in the Cisco IOS XE Release 3.7S.


NoteCisco IOS XE 3.7S inherits all supported features from Cisco IOS Release 3.5, which is not described in this document. For more information about Cisco IOS Release 3.5, see theRelease Notes for Cisco IOS XE Release 3S.


This chapter includes the following sections:

New Hardware Features in Cisco IOS XE Release 3.7(5)S

The IOS XE 3.7(5)S Release for the Cisco ASR 903 Router does not introduce any new hardware features.

New Hardware Features in Cisco IOS XE Release 3.7(4)S

The IOS XE 3.7(4)S Release for the Cisco ASR 903 Router does not introduce any new hardware features.

New Hardware Features in Cisco IOS XE Release 3.7(3)S

The IOS XE 3.7(3)S Release for the Cisco ASR 903 Router does not introduce any new hardware features.

New Hardware Features in Cisco IOS XE Release 3.7(2)S

The IOS XE 3.7(2)S Release for the Cisco ASR 903 Router does not introduce any new hardware features.

New Hardware Features in Cisco IOS XE Release 3.7(1)aS

The IOS XE 3.7(1)aS Release for the Cisco ASR 903 Router introduces the following hardware features:

  • AC Power Supply—Release 3.7(1)aS3.7(1)aS introduces support for the AC power supply. For more information about the AC power supply, see the Cisco ASR 903 Hardware Guide .

New Hardware Features in Cisco IOS XE Release 3.7(0)S

Release 3.7 introduces support for the ONS-SC-155-EL SFP module.

New Software Features in Cisco IOS XE Release 3.7(5)S

The IOS XE 3.7(5)S Release for the Cisco ASR 903 Router does not introduce any new software features.

New Software Features in Cisco IOS XE Release 3.7(4)S

The IOS XE 3.7(4)S Release for the Cisco ASR 903 Router does not introduce any new software features.

New Software Features in Cisco IOS XE Release 3.7(3)S

The IOS XE 3.7(3)S Release for the Cisco ASR 903 Router does not introduce any new software features.

New Software Features in Cisco IOS XE Release 3.7(2)S

The IOS XE 3.7(2)S Release for the Cisco ASR 903 Router does not introduce any new software features.

New Software Features in Cisco IOS XE Release 3.7(1)aS

Release 3.7(1) introduces support for QoS policies on egress MLPPP interfaces on the T1/E1 interface module. For more information about how to configure QoS policies on MLPPP interfaces, see the Cisco ASR 903 Router Chassis Configuration Guide, Release 3.7 .

New Software Features in Cisco IOS XE Release 3.7(0)S

The following are the new software features introduced in Cisco IOS XE Release 3.7(0)S:

http://www.cisco.com/en/US/docs/routers/7600/install_config/ES40_config_guide/es40_chap6.html.

http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/fspseudo.html

http://www.cisco.com/en/US/partner/docs/ios/mpls/configuration/guide/mp_hspw_for_atm.html#wp1054150

http://www.cisco.com/en/US/docs/ios-xml/ios/cether/configuration/xe-3s/asr903/ce-mac-addlmt-bdsin.html

http://www.cisco.com/en/US/docs/ios-xml/ios/cether/configuration/xe-3s/ce-mac-addlmt-bdsin.html

  • MAC Limiting—Mac address limiting per bridge-domain restricts the number of MAC addresses that the router learns in bridge-domain on an EFP, pseudowire or switch port. For more information, see http://www.cisco.com/en/US/docs/wireless/asr_900/feature/guides/mac_limiting.html .
  • MPLS VPN—The MPLS VPN Inter-AS with ASBRs Exchanging VPN-IPv4 Addresses feature allows a Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN) to span service providers and autonomous systems. For more information, see http://www.cisco.com/en/US/docs/ios/mpls/configuration/guide/mp_vpn_connect_asbr.html .
  • Multicast Static MAC Addresses— Static MAC addresses allow you to enable multicast at the layer 2 level. You can use multicast static MAC addresses to forward multicast packets to specific EFPs on a network. For more information, see http://www.cisco.com/en/US/docs/wireless/asr_900/feature/guides/evc.html .
  • Multi-Level Priority Queues (MPQ)—This feature allows you to configure multiple priority queues for multiple traffic classes by specifying a different priority level for each of the traffic classes in a single service policy map. You can configure multiple service policy maps per router. Having multiple priority queues enables the router to place delay-sensitive traffic (for example, voice) on the outbound link before delay-insensitive traffic. As a result, high-priority traffic receives the lowest latency possible on the router. For more information, see:

http://www.cisco.com/en/US/docs/ios-xml/ios/qos_conmgt/configuration/xe-3s/asr903/qos-conmgt-multilevel-pq.html

http://www.cisco.com/en/US/docs/ios-xml/ios/qos_conmgt/configuration/xe-3s/qos-conmgt-multilevel-pq.html