Cross-Platform Release Notes for Cisco IOS Release 15.2M&T
Release 15.2(3)T New Features and Important Notes
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Table of Contents

Features and Important Notes for Cisco IOS Release 15.2(3)T

Contents

New and Changed Information

New Hardware Features Supported in Cisco IOS Release 15.2(3)T3

New Hardware Features Supported in Cisco IOS Release 15.2(3)T4

New Software Features Supported in Cisco IOS Release 15.2(3)T3

New Hardware Features Supported in Cisco IOS Release 15.2(3)T2

New Software Features Supported in Cisco IOS Release 15.2(3)T2

New Hardware Features Supported in Cisco IOS Release 15.2(3)T1

New Software Features Supported in Cisco IOS Release 15.2(3)T1

New Hardware Features Supported in Cisco IOS Release 15.2(3)T

GRWIC Adaptor Card

New Software Features Supported in Cisco IOS Release 15.2(3)T

AAA-Domain Stripping at Server Group Level

Add New Media Quality MIBs Support

ASP/NR

BGP Best External

BGP Diverse Path Using Diverse-Path-RR

BGP IPv6 Client for Single Hop BFD

BGP IPv6 PIC Edge and Core for IP/MPLS

BGP PIC Edge for IP/MPLS

BGP Route Server

BGP—RT Constrained Route Distribution

CAC for IPv6 Flows

Cisco-BGP-MIBv2

Cisco IOS Zone-Based Policy Firewall High Availability

Dying Gasp Support for Loss of Power Supply via SNMP, Syslog and Ethernet OAM

EIGRP Dual DMVPN Domain Enhancement

Extensible Messaging Client Protocol (XMCP) 2.0

GET VPN Support for IPv6 in the Data Plane

GRWIC Adaptor Card

IEEE 802.1ab Link Layer Discovery Protocol (LLDP)

IEEE 802.1ab LLDP Local and Remote System MIBs

Inter-Chassis Asymmetric Routing Support on Zone-Based Firewall

IP SLAs TWAMP Responder v1.0

IPSLA 4.0—IPv6 Phase2

IPv6 ACL Extensions for Hop by Hop Filtering

IPv6 Remote Access for IPSec VPN

LISP PETR Load Sharing

LISP Route-Import

LISP Virtualization Support for Multiple Parallel RLOC Domains

LLDP IPv6 Address Support

Media Services Proxy Functionality on T-train for ISR-G2

MediaTrace 2.0

MoFRR

Multicast Live-Live

Multicast Service Reflection

NTPv4 Orphan Mode Support, Range for Trusted Key Configuration

OSPFv3 External Path Preference Option (RFC 5340 from RFC 2328 16.4.1)

OSPFv3 Max-Metric Router-LSA

Performance Monitor Metadata Support

PfR Auto Discovery v1.0

PfR BR Auto Neighbors

PfR BR Automatic Adjacencies

PIMv6—Anycast RP Solution

RSVP Multicast CAC

RTP Port Range

Service Module IPv6 Gateway Support

Support CEF Switching of IPv6 Traffic on Dialer Interfaces

Support Multiple xTRs with Dynamic RLOCs at a Site

VLAN 0 Priority Tagging Support

WAAS Express Phase 2

WCCP—Configurable Router ID

WCCP—Fast Timers

WCCPv2—IPv6 Support

Important Notes

Cisco IOS Behavior Changes

Cisco IOS Release 15.2(3)T3

Cisco IOS Release 15.2(3)T2

Cisco IOS Release 15.2(3)T1

Field Notices and Software-Related Tools and Information

Features and Important Notes for Cisco IOS Release 15.2(3)T

Contents

These release notes describe the following topics:

New and Changed Information

This section lists the new hardware and software features supported by Cisco IOS Release 15.2M&T and contains the following subsections:

New Hardware Features Supported in Cisco IOS Release 15.2(3)T3


Note A cumulative list of all new and existing features supported in this release, including platform and software image support, can be found in Cisco Feature Navigator at http://www.cisco.com/go/cfn.


New Hardware Features Supported in Cisco IOS Release 15.2(3)T4

There are no new hardware features in Cisco IOS Release 15.2(3)T4

New Software Features Supported in Cisco IOS Release 15.2(3)T3

There are no new software features in Cisco IOS Release 15.2(3)T3.

New Hardware Features Supported in Cisco IOS Release 15.2(3)T2

There are no new hardware features in Cisco IOS Release 15.2(3)T2.

New Software Features Supported in Cisco IOS Release 15.2(3)T2

There are no new software features in Cisco IOS Release 15.2(3)T2.

New Hardware Features Supported in Cisco IOS Release 15.2(3)T1

There are no new hardware features in Cisco IOS Release 15.2(3)T1.

New Software Features Supported in Cisco IOS Release 15.2(3)T1

There are no new software features in Cisco IOS Release 15.2(3)T1.

New Hardware Features Supported in Cisco IOS Release 15.2(3)T

This section describes new and changed features in Cisco IOS Release 15.2(3)T. Some features may be new to Cisco IOS Release 15.2(3)T but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 15.2(3)T. To determine if a feature is new or changed, see the feature information table at the end of the feature module for that feature. Links to feature modules are included. If a feature does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided.

New Software Features Supported in Cisco IOS Release 15.2(3)T

This section describes new and changed features in Cisco IOS Release 15.2(3)T. Some features may be new to Cisco IOS Release 15.2(3)T but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 15.2(3)T. To determine if a feature is new or changed, see the feature information table at the end of the feature module for that feature. Links to feature modules are included. If a feature does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided.

AAA-Domain Stripping at Server Group Level

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/sec_usr_aaa/configuration/15-2mt/sec-cfg-authentifcn.html

Add New Media Quality MIBs Support

Voice quality statistics are collected on ISR platforms to provide useful data regarding voice transmission and reception quality. New Acoustic Shock Protection (ASP) and Noise Reduction (NR) statistics, among many other voice and video quality metrics, are included in a Management Information Base (MIB) object called CISCO-MEDIA-QUALITY-MIB. This MIB can be used for MIB-based Simple Network Management Protocol (SNMP) polling and management. These media quality statistics are presented in Object Identification (OID) format.

BGP Diverse Path Using Diverse-Path-RR

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_bgp/configuration/15-2mt/irg_diverse_path.html

BGP IPv6 PIC Edge and Core for IP/MPLS

For detailed information about this feature, see the following documents:

http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_bgp/configuration/15-2mt/irg_ipv6_pic_edge.html

BGP Route Server

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/partner/docs/ios-xml/ios/iproute_bgp/configuration/15-2mt/irg-15-2mt-book.html

BGP—RT Constrained Route Distribution

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/iproute_bgp/configuration/guide/irg_rt_filter.html

CAC for IPv6 Flows

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/qos_rsvp/configuration/15-2mt/rsvp-cac-ipv6.html

Cisco IOS Zone-Based Policy Firewall High Availability

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/sec_data_zbf/configuration/15-2mt/sec-data-zbf-ha.html

Dying Gasp Support for Loss of Power Supply via SNMP, Syslog and Ethernet OAM

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/routers/connectedgrid/cgr2010/software/15_2_3_t/configuring_dying_gasp.html

EIGRP Dual DMVPN Domain Enhancement

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_eigrp/configuration/15-2mt/ire-cfg-eigrp.html

Extensible Messaging Client Protocol (XMCP) 2.0

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/saf/configuration/15-2mt/saf-saf.html

GET VPN Support for IPv6 in the Data Plane

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/sec_conn_getvpn/configuration/15-2mt/sec-get-vpn.html

IEEE 802.1ab Link Layer Discovery Protocol (LLDP)

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/cether/configuration/15-2mt/ce-lldp-multivend.html

IEEE 802.1ab LLDP Local and Remote System MIBs

Link Layer Discovery Protocol (LLDP) is a vendor-neutral Layer 2 protocol that allows a network device to advertise its identity and capabilities on a local network. A network management system can model the topology of the network by querying MIB databases in the devices. The maximum number of neighbor entries that LLDP supports is 12000. The maximum number of management addresses per station is 10. When LLDP is supported, the IEEE 802.1ab LLDP Local and Remote Systems MIB (IEEE 802.1ab LLDP MIB) is also supported.

Two sub-MIBs, the local system MIB and remote systems MIB, make up the IEEE 802.1ab LLDP MIB. The LLDP local system sub-MIB must be included on all platforms where transmission capability can be enabled. The LLDP remote systems sub-MIB is required where receipt of LLDP frames can be enabled.

The IEEE 802.1ab LLDP MIB interacts with the IF MIB to get network information and with the LLDP to obtain local and remote system information. When the Simple Network Management Protocol (SNMP) receives requests from the SNMP manager station and sends getmany queries, the IEEE 802.1ab LLDP MIB provides the requested information.

To use the IEEE 802.1ab LLDP MIB, LLDP must be configured and the IF MIB must be present. Users interact with the IEEE 802.1ab LLDP MIB using the SNMP manager application. The CLI command snmp-server community public ro or a similar command is required to enable the SNMP agent. Otherwise, no particular commands or configuration settings are required to use the IEEE 802.1ab LLDP MIB.

For detailed information about SNMP commands, see the Cisco IOS SNMP Support Command Reference at http://www.cisco.com/en/US/partner/docs/ios-xml/ios/snmp/command/nm-snmp-cr-book.html .

For detailed information about the IEEE 802.1ab LLDP MIB, and to locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at http://www.cisco.com/go/mibs .

Inter-Chassis Asymmetric Routing Support on Zone-Based Firewall

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/sec_data_zbf/configuration/15-2mt/sec-data-asym-zbf.html

IP SLAs TWAMP Responder v1.0

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/ipsla/configuration/15-2mt/sla_twamp.html

IPv6 ACL Extensions for Hop by Hop Filtering

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/ipv6/configuration/15-2mt/ip6-acl-ext-hbh.html

IPv6 Remote Access for IPSec VPN

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/sec_conn_ike2vpn/configuration/15-2mt/sec-cfg-flex-clnt.html

LISP PETR Load Sharing

The LISP PETR Load Sharing feature adds priority and weight options to configured PETRs for configurable load sharing. For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/lisp/command/reference/LISP_command_reference_1514xb6-only.pdf

LISP Route-Import

The LISP Route-Import feature enables dynamic proxying of EID-space by a Proxy-ITR. For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/lisp/command/reference/LISP_command_reference_1514xb6-only.pdf

LISP Virtualization Support for Multiple Parallel RLOC Domains

For detailed information about this feature, see the following document:

http://lisp.cisco.com/LISP-Virtualization_Cfg_Gde_IOS_01.pdf

LLDP IPv6 Address Support

Cisco IOS Release 15.2(3)T and later releases support IPv6 Link Layer Discovery Protocol (LLDP) and LLDP Media Endpoint Discovery (MED) addresses.

Media Services Proxy Functionality on T-train for ISR-G2

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/msp/configuration/15-2mt/med-ser-prxy.html

MediaTrace 2.0

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/media_monitoring/configuration/15-2mt/mm-mediatrace.html

MoFRR

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/ipmulti_serv/configuration/15-2mt/imc_mofrr.html

Multicast Live-Live

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/ipmulti_resil/configuration/15-2mt/imc_live.html

Multicast Service Reflection

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/ipmulti_serv/configuration/15-2mt/imc_service_reflect.html

NTPv4 Orphan Mode Support, Range for Trusted Key Configuration

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/bsm/configuration/15-2mt/bsm-time-calendar-set.html

OSPFv3 External Path Preference Option (RFC 5340 from RFC 2328 16.4.1)

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/ipv6/configuration/15-2mt/ip6-ospf.html

OSPFv3 Max-Metric Router-LSA

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/ipv6/configuration/15-2mt/ip6-ospf.html

Performance Monitor Metadata Support

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/media_monitoring/configuration/15-2mt/mm-pasv-mon.html

PfR Auto Discovery v1.0

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/pfr/configuration/15-2mt/pfr-target-disc.html

PfR BR Auto Neighbors

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/pfr/configuration/15-2mt/pfr-simple-ph1.html

PfR BR Automatic Adjacencies

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/pfr/configuration/15-2mt/pfr-simple-ph1.html

RSVP Multicast CAC

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/ipmulti_optim/configuration/15-2mt/imc_rsvp_cac.html

RTP Port Range

For ASR boxes, the RTP port range has been increased to a range of 8000 to 48200 to scale high call volumes. This port range allows up 10000 calls on a single interface.

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/voice/cminterop/configuration/15-mt/voi-ip6-voip.html#task_39847922DDE9413BAFE73A80EE44EA5D

Service Module IPv6 Gateway Support

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/interfaces_modules/services_modules/sre_v/2.0/user/guide/install_configure_srev.html

Support CEF Switching of IPv6 Traffic on Dialer Interfaces

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/dial/configuration/guide/dia_cef_switch_ipv6.html

Support Multiple xTRs with Dynamic RLOCs at a Site

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/lisp/command/reference/LISP_command_reference_1514xb5-only.pdf

VLAN 0 Priority Tagging Support

For detailed information about this feature, see the following documents:

http://www.cisco.com/en/US/docs/ios-xml/ios/atm/configuration/15-2mt/atm-vlan-prty-tag.html

WAAS Express Phase 2

For detailed information about this feature, see the following documents:

http://www.cisco.com/en/US/docs/ios-xml/ios/wan_waas/configuration/15-2mt/wan-cfg-waas-exp.html

WCCP—Configurable Router ID

For detailed information about this feature, see the following documents:

http://www.cisco.com/en/US/docs/ios-xml/ios/ipapp/configuration/15-2mt/iap-wccp-cfg-rtr-id.html

WCCP—Fast Timers

For detailed information about this feature, see the following documents:

http://www.cisco.com/en/US/docs/ios-xml/ios/ipapp/configuration/15-2mt/iap-wccp-ftimers.html

WCCPv2—IPv6 Support

For detailed information about this feature, see the following documents:

http://www.cisco.com/en/US/docs/ios-xml/ios/ipapp/configuration/15-2mt/iap-wccp-v2-ipv6.html

Important Notes

The following information applies to all releases of Cisco IOS Release 15.2T.

Cisco IOS Behavior Changes

Behavior changes describe the minor modifications to the way a device works that are sometimes introduced in a new software release. These changes typically occur during the course of resolving a software defect and are therefore not significant enough to warrant the creation of a stand-alone document. When behavior changes are introduced, existing documentation is updated with the changes described in this section.

Behavior changes are provided for the following releases:

Cisco IOS Release 15.2(3)T3

Cisco IOS Release 15.2(3)T2

Cisco IOS Release 15.2(3)T1

Cisco IOS Release 15.2(3)T3

The following behavior changes are introduced in Cisco IOS Release 15.2(3)T3:

• Virtual template lock functionality change.

Old Behavior: A virtual template of the type tunnel with cloned virtual access interfaces can be configured. The virtual template dynamically updates the configuration to the cloned virtual access interfaces, thereby causing instability in some scenarios.

New Behavior: A virtual template of the type tunnel having with cloned virtual access interfaces cannot be configured.

Additional Information:

http://www.cisco.com/en/US/docs/ios-xml/ios/sec_conn_vpnips/configuration/15-2s/sec-ipsec-virt-tunnl.html

  • The default mode for the default transform set is changed to tunnel.

Old Behavior: The default mode for all transform sets, including the default transform set, is tunnel.

New Behavior: The default mode for the default transform set is transport; the default mode for all other transform sets is tunnel.

Additional Information:

http://www.cisco.com/en/US/docs/ios-xml/ios/sec_conn_ike2vpn/configuration/15-2s/sec-cfg-ikev2-flex.html#GUID-F936D366-EEE2-4016-A8CA-DE4EF6C1B205

http://www.cisco.com/en/US/docs/ios-xml/ios/sec_conn_ike2vpn/configuration/15-2mt/sec-cfg-ikev2-flex.html#GUID-F936D366-EEE2-4016-A8CA-DE4EF6C1B205

http://www.cisco.com/en/US/docs/ios-xml/ios/sec_conn_ike2vpn/configuration/15-sy/sec-cfg-ikev2-flex.html#GUID-F936D366-EEE2-4016-A8CA-DE4EF6C1B205

  • Initial INVITE with 0.0.0.0 call flow is supported.

Old Behavior: Initial INVITE with 0.0.0.0 is not supported unless ACK contains valid ip address.

New Behavior: This call flow is supported.

Additional Information:

http://www.cisco.com/en/US/docs/ios-xml/ios/voice/sip/configuration/15-mt/voi-sip-rfc.html#GUID-B6E5879A-D5DC-4E2C-BC97-AC927985E10E

Cisco IOS Release 15.2(3)T2

The following behavior changes are introduced in Cisco IOS Release 15.2(3)T2:

  • Up to ten classless static routes are supported using option 121 on the DHCP client.

Old Behavior: Only two classless static routes were supported using option 121 on the DHCP client.

New Behavior: Up to ten classless static routes are supported using option 121 on the DHCP client.

Additional Information: http://www.cisco.com/en/US/docs/ios-xml/ios/ipaddr_dhcp/configuration/15-2mt/config-dhcp-client.html

  • BGP processing of the removal of private AS numbers from the AS path.

Old Behavior: When the neighbor remove-private-as command is configured and a route-map without a continue clause is configured, the processing order is:

1. neighbor remove-private-as processing

2. set as-path prepend or set as-path prepend last-as

However, if the route-map contains a continue clause, the processing order is reversed.

New Behavior: When the neighbor remove-private-as command is configured and a route-map is configured (whether it has a continue clause or not), the processing order is always:

1. neighbor remove-private-as processing

2. set as-path prepend or set as-path prepend last-as

  • Virtual template lock functionality.

Old Behavior: A virtual template of the type tunnel with cloned virtual access interfaces can be configured. The virtual template dynamically updates the configuration to the cloned virtual access interfaces, thereby causing instability in some scenarios.

New Behavior: A virtual template of the type tunnel having with cloned virtual access interfaces cannot be configured.

Additional Information: http://www.cisco.com/en/US/docs/ios-xml/ios/sec_conn_vpnips/configuration/15-2s/sec-ipsec-virt-tunnl.html

  • In the IPsec SVTI configuration with HA, existing security associations are not affected.

Old Behavior: When configuring IPsec SVTI with HA, the standby router reload interrupts the existing security associations.

New Behavior: When configuring IPsec SVTI with HA, the standby router reload does not affect the existing security associations.

Additional Information: http://www.cisco.com/en/US/docs/ios-xml/ios/sec_conn_vpnips/configuration/15-2mt/sec-ipsec-virt-tunnl.html#GUID-D4B2DE6B-A9B1-4F68-AF39-995CDAFFDEB9

  • HLog PLK blinks, the hunt member logs out, and the conference call is blocked.

Old Behavior: There is no label configuration for the feature button.

New behavior: There is label configuration for feature buttons.

Additional Information: http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/command/reference/cme_cr.html

http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/admin/configuration/guide/cmesoftk.html#wp1035296

  • IKEv2 default max in-negotiation CAC counter has been modified to 40.

Old Behavior: IKEv2 default max in-neg CAC counter is 1000.

New Behavior: IKEv2 default max in-neg CAC counter has been modified to 40 and is true for all platforms.

Additional Information: http://www.cisco.com/en/US/docs/ios-xml/ios/security/s1/sec-cr-s3.html

  • Missing threshold for logout calls in the queue display.

Old Behavior: The threshold is missing for logout calls in the queue display. The CLI is hunt-group logout [DND | HLog] .

New Behavior: The notify keyword and threshold-number argument are added in the hunt-group logout command to enable the indication of the calls in queue for logout agents using the Hlog Programmable Line Key.

hunt-group logout [DND | HLog | notify | threshold-number ]

  • Unable to lock out the background settings using the xml append file. Users cannot configure commonProfile xml content and comprise it with the callLogBlfEnabled enabled by “presence call-list”.

Old Behavior: Users cannot configure the commonProfile xml content.

New Behavior: Introduced the following new CLI to set parameters under commonProfile section in IP phone SEP*.cnf.xml configuration files.

service profile [phonePassword password | callLogBlfEnabled | backgroundImageAccess false]

  • The clear call threshold interface command can be used for a Gigabit Ethernet interface.

Old Behavior: Unable to the clear call threshold interface command for a Gigabit Ethernet interface.

New Behavior: Gigabit Ethernet interface is a valid interface type.

Additional Information: http://www.cisco.com/en/US/docs/ios-xml/ios/voice/vcr1/vcr-c5.html#GUID-63581F18-D001-4975-A04E-9A0807CAB08E

  • WebEx data, streaming, video, and voice application types are not supported.

Old Behavior: The webex-data , webex-streaming , webex-video , and webex-voice keywords are available in the match application command.

New Behavior: The webex-data , webex-streaming , webex-video , and webex-voice keywords are not available in the match application command.

Additional Information: http://www.cisco.com/en/US/docs/ios-xml/ios/qos/command/match_access-group_through_mls_ip_pbr.html#GUID-05DC6228-60F5-428A-AEE0-2C4FE9FC848E

Cisco IOS Release 15.2(3)T1

The following behavior changes are introduced in Cisco IOS Release 15.2(3)T1:

  • Configure “radius-server attribute 44 include-in-access-req all” instead of “radius-server attribute 44 include-in-access-req” if the per VRF-level attribute inclusion is not required.

Old Behavior: The radius-server attribute 44 include-in-access-req command applies attribute 44 for all the sessions.

New Behavior: The command is modified to include the configuration of non-VRF sessions.

Additional Information: http://www.cisco.com/en/US/docs/ios-xml/ios/security/m1/sec-cr-r1.html#GUID-0C067786-2A4D-4D26-A429-0E7AA331E4CD

  • When ATM subinterfaces need to be assigned an IP address from a DHCP server, the MAC address on the main interface can be resued for the subinterface.

Old Behavior: The MAC address configured by the atm ether-mac-address command could not be reused for the subinterface.

ip dhcp client client-id { interface-name | ascii string | hex string }

New Behavior: The MAC address configured by the atm ether-mac-address command can be reused using the reuse-mac keyword.

ip dhcp client client-id { interface-name | ascii string | hex string | reuse-mac}

Additional Information: http://www.cisco.com/en/US/docs/ios-xml/ios/ipaddr/command/ipaddr-c1.html#GUID-2DD12DE9-4E26-407B-ABEF-A2018F3CA9B8

  • Change to how IPv6 paths are advertised.

Old Behavior: An IPv6 path is advertised without a label when the label has not been negotiated

New Behavior: IPv6 paths are not advertised if the label has not been negotiated

  • The mode tunnels command is disabled by default.

Old Behavior: PfR automatically creates dynamic tunnels between all border routers.

New Behavior: Dynamic tunnels are not automatically created between border routers.

Additional Information: http://www.cisco.com/en/US/docs/ios-xml/ios/pfr/command/pfr-h1.html

  • For the Carrier Packet Transport (CPT) system, an alert is displayed whenever a round-trip delay threshold violation occurs during an IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) operation.

Old Behavior: When a round-trip delay exceeds the specified threshold, an event is sent and IP SLAs generate a notification to the network management application.

New Behavior: For the CPT system, when a round-trip delay threshold violation occurs during an IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) operation, an alert is displayed, in addition to IP SLAs sending a notification. The alert is cleared when the round-trip delay falls back below the specified threshold value.

Additional Information: http://www.cisco.com/en/US/docs/ios-xml/ios/ipsla/command/sla_i1.html

Field Notices and Software-Related Tools and Information

We recommend that you view the field notices for this release to see if your software or hardware platforms are affected. You can find Field Notices at http://www.cisco.com/en/US/support/tsd_products_field_notice_summary.html.

Visit the Software Center/Download Software page on Cisco.com to subscribe to Cisco software notifications, locate MIBs, access the Software Advisor, and find other Cisco software-related information and tools. Access the Software Center/Download Software page at http://www.cisco.com/cisco/web/download/index.html .