The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
These release notes describe the following topics:
This section lists the new hardware and software features supported by Cisco IOS Release 15.2S and contains the following subsections:
There are no new hardware features in Cisco IOS Release 15.2(2)S2.
There are no new software features in Cisco IOS Release 15.2(2)S2.
This section describes new and changed features in Cisco IOS Release 15.2(2)S1. Some features may be new to Cisco IOS Release 15.2(2)S1 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(2)S1. 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.
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/chassis/configuration/guide/sw_T1-E1.html
This section describes new and changed features in Cisco IOS Release 15.2(2)S1. Some features may be new to Cisco IOS Release 15.2(2)S1 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(2)S1. Links to feature modules are included. If a feature listed 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.
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/chassis/configuration/guide/swbfd.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/chassis/configuration/guide/swclocking.html
Platform: Cisco ME 3600X, Cisco ME 3600X-24CX, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/
15.2_2_S/configuration/guide/swdynarp.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/ipmulti_mvpn/configuration/15-2s/
imc_cfg_mc_vpn.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/chassis/configuration/guide/swclocking.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/chassis/configuration/guide/swpseudowire.html
Platform: Cisco ME 3600X, Cisco ME 3600X-24CX, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swqos.html
This section describes new and changed features in Cisco IOS Release 15.2(2)S. Some features may be new to Cisco IOS Release 15.2(2)S 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(2)S. 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.
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/routers/7600/Hardware/15_0s/7600_hwd.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/interfaces_modules/shared_port_adapters/configuration/7600series/76cfgatm.html
This section describes new and changed features in Cisco IOS Release 15.2(2)S. Some features may be new to Cisco IOS Release 15.2(2)S 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(2)S. Links to feature modules are included. If a feature listed 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.
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/interfaces_modules/shared_port_adapters/configuration/7600series/76cfgatm.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/routers/7600/install_config/ES40_config_guide/es40_chap4.html
Platform: Cisco ME3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swsdm.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/sec_data_acl/configuration/15-2s/sec-acl-syslog.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_eigrp/configuration/15-2s/ire-bfd-ipv6.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_bgp/configuration/15-2s/irg-grace-shut.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_bgp/configuration/15-2s/irg-nsr-ibgp.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_bgp/configuration/15-2s/irg-mvpn-safi.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_bgp/configuration/15-2s/irg-nsr-autosense.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/sec_data_acl/configuration/15-2s/
sec-create-ip-al-filter.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swcopp.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swdhcp82.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swdhcp82.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_eigrp/configuration/15-2s/eigrp-ip6-nsf.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_eigrp/configuration/15-2s/ire-en-rou-tags.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/sweem.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_eigrp/configuration/15-2s/ire-en-rou-tags.html
For detailed information about this feature, see the documents at the following URLs:
http://www.cisco.com/en/US/docs/routers/7600/Hardware/15_0s/7600_hwd.html
http://www.cisco.com/en/US/docs/routers/7600/Hardware/
Module_and_Line_Card_Installation_Guides/ES40_Line_Card_Installation_Guide/es40_chap1.html
http://www.cisco.com/en/US/docs/routers/7600/Hardware/
Module_and_Line_Card_Installation_Guides/ES40_Line_Card_Installation_Guide/es40_chap2.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the documents at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swigmp.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the documents at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swigmp.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_pi/configuration/15-2s/iri-ip-lfa-frr.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/ipsla/configuration/15-2s/sla_twamp.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swiprout.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/ipv6/configuration/15-2s/ip6-acl-ext-hbh.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swipv6.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/interfaces_modules/services_modules/vspa/configuration/guide/
ivmvpn3.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swevc.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_isis/configuration/15-2s/irs-rmte-lfa-frr.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swacl.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swqos.htm l
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swadmin.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swethchl.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/routers/7600/ios/15S/configuration/guide/pfc3mpls.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/routers/7600/ios/15S/configuration/guide/7600_15_0s_book.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios/sec_data_plane/configuration/guide/sec_object_group_acl.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/routers/7600/technical_references/7600_mib_guides/
MIB_Guide_ver_6/7600mib3.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_ospf/configuration/15-2s/iro-ipfrr-lfa.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_ospf/command/iro-cr-book.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swsnooppim.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/mp_l2_vpns/configuration/15-2s/mp-rt-pw-rt-vpls.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/mp_ha/configuration/15-2s/
mp-sso-supp-mpls-te-autotun-automesh.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/routers/7600/install_config/ES40_config_guide/es40_chap4.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/routers/7600/ios/15S/configuration/guide/span.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swqos.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swv6acl.html
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/routers/7600/install_config/ES40_config_guide/es40_chap13.html
Platform: Cisco 7600, Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/ios-xml/ios/ipsla/configuration/15-2s/sla_mether3_y1731.html
Platform: Cisco ME 3600X, Cisco ME 3800X
For detailed information about this feature, see the document at the following URL:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.2_2_S/
configuration/guide/swy1731pm.html
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use the Cisco MIB Locator found at the following URL:
http://tools.cisco.com/ITDIT/MIBS/servlet/index
If the Cisco MIB Locator does not support the MIB information that you need, you can obtain a list of supported MIBs and download MIBs from the Cisco MIBs page at the following URL:
http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml
To access the Cisco MIB Locator, you must have an account on Cisco.com. If you have forgotten or lost your account information, send a blank e-mail to cco-locksmith@cisco.com. An automatic check will verify that your e-mail address is registered with Cisco.com. If the check is successful, account details with a new random password will be e-mailed to you. Qualified users can establish an account on Cisco.com by following the directions found at this URL:
The following sections contain important notes about Cisco IOS Release 15.2S:
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 standalone document. When behavior changes are introduced, existing documentation is updated with the changes described in these sections.
The following behavior changes were introduced in Cisco IOS Release 15.2(2)S2:
Old Behavior: The maximum value for cleanup-delay time that is configured using the mpls traffic-eng reoptimize timers delay cleanup-delay time command, is 60 seconds.
New Behavior: The maximum value for cleanup-delay time that is configured using the mpls traffic-eng reoptimize timers delay cleanup-delay time command, is 300 seconds.
Additional Information: http://www.cisco.com/en/US/docs/ios-xml/ios/mpls/command/mp-m4.html#GUID-B64630A1-3CD7-42DE-8E86-6CD47AC8981A
Old Behavior: The metadata service functionality is not available.
New Behavior: The Cisco SAF Forwarder can send service metadata to its neighbor SAF nodes. Metadata is XML information, and service data is information that a server communicates to a client about itself. The service metadata does not propagate in mixed Cisco IOS Release 15.1(3)S) and Cisco IOS Release 15.2(1)S environments until such time that the version of EIGRP and SAF is upgraded.
Additional Information: http://www.cisco.com/en/US/docs/ios-xml/ios/saf/configuration/15-2s/saf-15-2s-book.html
Old Behavior: When a round-trip delay exceeds the specified threshold, an event is sent and IP SLAs generates 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
Old Behavior: Taps on the same stream with different port range was rejected.
New Behavior: Taps on the same stream with different port range is accepted.
Additional Information: http://www.cisco.com/en/US/docs/routers/7600/ios/12.2SR/configuration/lawful_intercept/76LIch2.html
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
The following behavior changes were introduced in Cisco IOS Release 15.2(2)S1:
Old Behavior: All packets transmitted over ATM AutoVC are classified using the default class link type.
New Behavior: PPPoE Active Discovery Initiation (PADI) packets transmitted over ATM AutoVC are classified using the PPPOE_DISCOVERY link type.
Non-PADI packets continue to be classified using the default class link type. Each ATM cell of a PADI packet is punted as a separate packet, and is counted toward the PPPOE_DISCOVERY packet count.
The match protocol pppoe-discovery command matches all PPPoE control packets that are sent to the control plane including the PADI packets.
http://www.cisco.com/en/US/docs/ios-xml/ios/qos/command/
match_access-group_through_mls_ip_pbr.html
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
Old Behavior: The maximum number of IIFs or OIFs supported is 64 for any of the following configurations: routed ports or SVIs that are configured on a switch port or for an Ethernet Flow Point (EFP).
New Behavior: For routed ports and SVIs configured on a switch port, the maximum number of supported IIFs and OIFs is increased to 128.
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 with cloned virtual access interfaces cannot be configured.
http://www.cisco.com/en/US/docs/ios-xml/ios/sec_conn_vpnips/configuration/15-2s/
sec-ipsec-virt-tunnl.html
Cisco IOS software images are subject to deferral. Cisco recommends that you view the deferral notices at the following location to determine if your software release is affected: