New and Changed Information
The following sections list the new hardware and software features that are supported by the Cisco ASR 1000 Series Routers for Cisco IOS XE Release 3.11S:
New Hardware in Cisco ASR 1000 Series Aggregation Services Routers Release 3.11.0S
No new hardware was introduced in Cisco ASR 1000 Series Aggregation Services Routers Release 3.11.0S.
New Software Features in Cisco ASR 1000 Series Aggregation Services Routers Release 3.11.0S
The following are the new software features introduced in Cisco ASR 1000 Series Aggregation Services Routers Release 3.11.0S.
BGP GSHUT enhancement
The BGP Graceful Shutdown (GSHUT) Enhancement feature enables graceful shutdown of either all neighbors or only virtual routing and forwarding (VRF) neighbors across BGP sessions. The following command has been introduced in this feature: bgp graceful-shutdown all.
BGP Monitoring Protocol
The BGP Monitoring Protocol (BMP) feature enables configuration and monitoring of BMP servers, establishing connection with the BMP clients, and monitoring and reporting of all configured BGP neighbors.
The following commands were added or modified for this feature:
- The "bmp-activate" keyword was added to the "neighbor" command.
- The "bmp" command was added.
- The "bmp server" command was added to enable bmp-server configuration sub-mode under router configuration mode.
IPv6 IPSec QoS (LLQ and QoS Pre-Classify)
The IPv6 IPSec QoS feature applies the Quality of Service (QoS) policies to IPV6 IPsec. This feature supports the following functionalities:
- Crypto LLQ QoS: Traffic that is classified as priority, for example PAK priority, is en-queued to the priority queue before the crypto processor. The Low Latency Queuing (LLQ) for IPSec encryption engines helps reduce packet latency for priority traffic.
- IPSec QoS pre-classify: QoS pre-classify is configured under a crypto map to enable IPSec to save the original Layer 3 and Layer 4 header before the encryption so that Quality of Service (QoS) can do the classification using the saved header.
- QoS group-based LLQ: The QoS group-based LLQ feature allows IPSec to check the LLQ QoS group setting to determine whether a packet is a high priority packet before it is en-queued to Low Latency Queue (LLQ).
The following commands were modified: crypto map and qos pre-classify to reflect IPv6 capabilities
ISDN Phase 2 (for LAC) on E1
For detailed information, see the following Cisco document:
http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/vpdn/configuration/xe-3s/vpd-xe-3s-book/vpd-isdn-access-bba.html
Multi-Topology BGP with VRF enhancement
The Multi-Topology BGP with VRF enhancement feature enables multi- topology BGP routing in VRF. There are no new BGP commands introduced or modified for this feature. If multi-topology BGP is configured, the "address-family (ipv4 | ipv6) multicast" command under a specific "vrf definition" is used for configuration; else all multicast VRF activity is configured using the "address-family (ipv4 | ipv6)" command under "vrf definition".
NBAR2: Add/rename static attributes
The custom values enable you to name the attributes based on grouping of protocols. You can create custom values for the application-group, category, and sub-category attributes. Use the ip nbar attribute application-group custom application-group-name, ip nbar attribute category custom category-name, and ip nbar attribute sub-category custom sub-category-name to add custom values for the attributes application-group, category, and sub-category, respectively.
For detailed information, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios-xml/ios/qos_nbar/configuration/xe-3s/asr1000/clsfy-traffic-nbar.html
NBAR2: Integrate NBAR Taxonomy into the router
The NBAR taxonomy file contains the information such as common name, description, underlying protocol, for every protocol that is available in the protocol pack. Use the show ip nbar protocol-pack active taxonomy, show ip nbar protocol-pack inactive taxonomy, and show ip nbar protocol-pack loaded taxonomy commands to view the taxonomy for an active, inactive, and all loaded protocol packs, respectively.
For detailed information, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios-xml/ios/qos_nbar/configuration/xe-3s/asr1000/nbar-protocl-pack.html
OSPFv3 Multi Area Adjacency
http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_ospf/configuration/xe-3s/iro-v3-multi-area-adj-xe.html
Pv6 IPSec QoS (LLQ and QoS Pre-Classify)
The IPv6 IPSec QoS feature applies the Quality of Service (QoS)policies to IPV6 IPsec. This feature supports the following functionalities:
- Crypto LLQ QoS: Traffic that is classified as priority, for example PAK priority, is en-queued to the priority queue before the crypto processor. The Low Latency Queuing (LLQ) for IPSec encryption engines helps reduce packet latency for priority traffic.
- IPSec QoS pre-classify: QoS pre-classify is configured under a crypto map to enable IPSec to save the original Layer 3 and Layer 4 header before the encryption so that Quality of Service (QoS) can do the classification using the saved header.
- QoS group-based LLQ: The QoS group-based LLQ feature allows IPSec to check the LLQ QoS group setting to determine whether a packet is a high priority packet before it is en-queued to Low Latency Queue (LLQ).
The following commands were modified: crypto map and qos pre-classify to reflect IPv6 capabilities
Retain DSCP setting of RTP packet
This feature introduces the preserving and forwarding of Differentiated services code point (DSCP) markings received from endpoints by Cisco Unified Communications Manager (CUCM) when the programmed value from CUCM is NULL. Media Termination Point (MTP) does not store the DSCP for a session, but picks the value from an incoming packet and inserts it into an outgoing packet. Thus DSCP value from an endpoint can change in the middle of a session.
VRF aware BGP translate-update
The VRF aware BGP translate-update feature enables customer devices, that contain an old version of Cisco software that does not support multicast BGP routing, to advertise its routes to multicast VRF- Lite, multicast VPN for VPNv4 and VPNv6 neighbors, as well as through IPv6 over IPv4 tunnel. The "neighbor" command is modified to include the "translate-update" keyword that enables this feature and applies only to the VRF address families.