Name: Cisco ASR 903
Brand: Cisco
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Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router

OL-26630-08

Chapter

New Software Features in Cisco IOS XE Release 3.11S

DS3 Framing on OC-3 and OC-12

This feature introduces support for the DS3 clear channel for OC-3 and OC-12 interface modules. For

more information, see

htp://www.cisco.com/en/US/docs/routers/asr903/software/guide/chassis/Release3.9.0S/OC_Ifc_Modul

e.html.

Fast Reroute Support for Bridge Domain Interface

Fast Reroute is supported on bridge domain interfaces on the Cisco ASR 903 router. For more

information, see http://www.cisco.com/en/US/docs/routers/asr903/feature/guide/b_lfa_frr_903.html.

IPv6 Multicast: Multicast Listener Discovery (MLD)

This feature is used by IPv6 devices to discover multicast listeners (nodes that want to receive multicast

packets destined for specific multicast addresses) on directly attached links.

For more information see,

http://www.cisco.com/en/US/docs/routers/asr903/software/guide/b_ipmcast_pim_xe_3S_asr903_chapt

er_0101.html

IPv6 Multicast: PIM v6

This feature supports the following:

• PIM Source-Specific Multicast—The PIM source-specific multicast (SSM) routing protocol

supports SSM implementation and is derived from PIM-SM.

• PIM Sparse Mode (PIM-SM)—IPv6 multicast provides support for intra domain multicast routing

using PIM sparse mode (PIM-SM).

• PIM Embedded RP Support—Embedded RP support allows the device to learn RP information using

the multicast group destination address instead of the statically configured RP.

• PIM Accept Register—supports the PIM accept register feature to perform PIM-SM register

message filtering at the RP.

For more information see,

http://www.cisco.com/en/US/docs/routers/asr903/software/guide/b_ipmcast_pim_xe_3S_asr903_chapt

er_0110.html

ISIS Local Microloop Protection

http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_isis/configuration/xe-3s/irs-uloop-local-avoid.ht

MR-APS Integration with Hotstandby Pseudowire

This feature is a protection mechanism for Synchronous Optical Network (SONET) networks that

enablesSONET connections to switch to another SONET circuit when a circuit failure occurs.For more

information see,

http://www.cisco.com/en/US/docs/routers/asr903/software/guide/b_MR_APS_ASR903.html

Cisco ASR 903 Release Notes

Other manuals for Cisco ASR 903