Cisco ASR 900 Series Release Notes page 27

Chapter
MPLS VPN—The MPLS VPN Inter-AS with ASBRs Exchanging VPN-IPv4 Addresses feature
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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
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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
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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:
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N:1 PVC mapping to PWE with non-unique VPI—This feature allows you to map one or more ATM
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permanent virtual circuits (PVCs) to a single pseudowire. For more information, see
http://www.cisco.com/en/US/docs/ios-xml/ios/atm/configuration/15-2s/atm-n1pvc-mapping.html.
Onboard Failure Logging—The Onboard Failure Logging (OBFL) feature collects data such as
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operating temperatures, hardware uptime, interrupts, and other important events and messages from
system hardware installed in a Cisco router or switch. The data is stored in nonvolatile memory and
helps technical personnel diagnose hardware problems. For more information, see
http://www.cisco.com/en/US/docs/wireless/asr_900/feature/guides/onboard_failure_logging.html.
PTP Redundancy—PTP redundancy allows a PTP slave clock to select the best master from multiple
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available master clocks based on clock quality and availability. For more information, see
http://www.cisco.com/en/US/docs/routers/asr903/software/guide/chassis/Release3.7.0S/ASR903-
Chassis-SW-37.html.
Time of Day Selection—You can use the time of day (ToD) and 1PPS ports on the Cisco ASR 903
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Series Router to exchange ToD clocking. In master mode, the router can receive time of day (ToD)
clocking from an external GPS unit; the router requires a ToD, 1PPS, and 10Mhz connection to the
GPS unit. For more information, see
http://www.cisco.com/en/US/docs/routers/asr903/software/guide/chassis/Release3.7.0S/ASR903-
Chassis-SW-37.html
OL-26630-12
http://www.cisco.com/en/US/docs/ios-xml/ios/qos_conmgt/configuration/xe-3s/asr903/qos-con
mgt-multilevel-pq.html
http://www.cisco.com/en/US/docs/ios-xml/ios/qos_conmgt/configuration/xe-3s/qos-conmgt-mul
tilevel-pq.html
New Software Features in Cisco IOS XE Release 3.7(0)S
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
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