Table Of Contents

Cisco High Availability Features Roadmap

Cisco High Availability Features Roadmap

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First Published: December 31, 2007

Last Updated: September 10, 2010

This roadmap lists the features documented in the High Availability (HA) modules and maps the features to the modules in which they appear.

Feature and Release Support

Table 1 lists the DHCP feature support for the following Cisco IOS software release trains:

•Cisco IOS XE 3SG

•Cisco IOS Release 15.0S

•Cisco IOS Release 12.2SX

•Cisco IOS Release 12.2SR

•Cisco IOS Release 12.2SB

•Cisco IOS Release 12.2S

•Cisco IOS Release 12.0S

Use Cisco Feature Navigator to find information about platform support and Cisco IOS and Catalyst OS software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.

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Note Table 1 lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

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Table 1 Supported Cisco IOS High Availability Features 

Release	Feature Name	Where Documented
Cisco IOS Release 12.0S
12.0(22)S	Cisco Nonstop Forwarding	Cisco Nonstop Forwarding
	Stateful Switchover	Stateful Switchover
12.0(28)S	SSO - Multilink Frame Relay	Stateful Switchover
Cisco IOS Release 12.2S
12.2(18)S	Cisco Nonstop Forwarding	Cisco Nonstop Forwarding
	Stateful Switchover	Stateful Switchover
12.2(25)S	NSF/SSO—MPLS VPN	NSF/SSO and ISSU - MPLS VPN
	•SSO - Multilink Frame Relay •SSO - QoS	Stateful Switchover
Cisco IOS Release 12.2SB
12.2(28)SB	Cisco Nonstop Forwarding	Cisco Nonstop Forwarding
	In Service Software Upgrade	Cisco IOS In Service Software Upgrade Process
	NSF/SSO—MPLS VPN	NSF/SSO and ISSU - MPLS VPN
	Stateful Switchover	Stateful Switchover
12.2(31)SB2	ISSU - Quality of Service (QoS)	Cisco IOS In Service Software Upgrade Process
	•Dynamic Host Configuration Protocol (DHCP) On Demand Address Pool (ODAP) client/server •SSO - DHCP proxy client •SSO - DHCP relay on unnumbered interface •SSO - DHCP server •SSO - Gateway Load Balancing Protocol (GLBP) •SSO - Multilink Frame Relay •SSO - PPPoA •SSO - PPPoE	Stateful Switchover
12.2(33)SB	SNMP support for ISSU	Cisco IOS In Service Software Upgrade Process
	SSO - BFD (Admin Down)	Stateful Switchover
Cisco IOS Release 12.2SR
12.2(33)SRA	Cisco Nonstop Forwarding	Cisco Nonstop Forwarding
	NSF/SSO—MPLS VPN	NSF/SSO and ISSU - MPLS VPN
	Stateful Switchover	Stateful Switchover
12.2(33)SRB	•SSO - Multilink Frame Relay •SSO - PPP	Stateful Switchover
12.(33)SRB1	•ISSU - ARP •ISSU - ATM •ISSU - Frame Relay •ISSU - GLBP •ISSU - HDLC •ISSU - HSRP •ISSU - IS-IS •ISSU - PPP/MLP •ISSU - QoS •ISSU - RIB/VRF •ISSU - SNMP	Cisco IOS In Service Software Upgrade Process
12.2(33)SRC	•CEM SSO/ISSU •ISSU - Virtual template manager	Cisco IOS In Service Software Upgrade Process
	•CEM SSO/ISSU •SSO - DHCP proxy client •SSO - VRRP •Virtual template manager SSO	Stateful Switchover
12.2(33)SRE	NSF/SSO - IPv6 Multicast	•Cisco Nonstop Forwarding •Stateful Switchover
Cisco IOS Release 12.2SX
12.2(33)SXH	NSF/SSO—MPLS VPN	NSF/SSO and ISSU - MPLS VPN
	•SSO - GLBP •SSO - HSRP	Stateful Switchover
12.2(33)SXI4	NSF/SSO - Virtual Private LAN services	NSF/SSO/ISSU Support for VPLS
Cisco IOS Release 12.2XNE
12.2(33)XNE	ISSU - MPLS VPN 6VPE and 6PE ISSU support	NSF/SSO and ISSU - MPLS VPN 6VPE and 6PE
Cisco IOS Release 15.0S
15.0(1)S	ISSU - 802.3ah OAM Support	Using Ethernet Operations, Administration, and Maintenance
	ISSU - AToM ATM Attachment Circuit	Any Transport over MPLS and AToM Graceful Restart
15.0(1)S	•ISSU - ATM •ISSU - DHCP ODAP Client/Server •ISSU - DHCP Proxy Client •ISSU - DHCP Relay on Unnumbered Interface •ISSU - DHCP Server •ISSU - Frame Relay •ISSU - IS-IS	Cisco IOS In Service Software Upgrade Process
	ISSU- E-LMI Support	Configuring Ethernet Local Management Interface at a Provider Edge
	ISSU- IPv4 Multicast	•Monitoring and Maintaining Multicast HA Operations (NSF/SSO and ISSU) •Cisco IOS In Service Software Upgrade Process
	ISSU - PPPoE	Cisco IOS Broadband High Availability In Service Software Upgrade
	ISSU- Virtual Private LAN Service (VPLS)	NSF/SSO/ISSU Support for VPLS
	ISSU- VRRP	Configuring VRRP
	NSF - Graceful Restart (GR) and Non Stop Routing (NSR) for IS-IS	Cisco Nonstop Forwarding
	NSF - OSPH	Cisco Nonstop Forwarding
	NSF/SSO - 802.3ah OAM Support	Using Ethernet Operations, Administration, and Maintenance
	NSF / SSO - Any Transport over MPLS (AToM)	Any Transport over MPLS and AToM Graceful Restart
	NSF/SSO - E-LMI Support	Configuring Ethernet Local Management Interface at a Provider Edge
	NSF/SSO - IPv4 Multicast	•Monitoring and Maintaining Multicast HA Operations (NSF/SSO and ISSU) •Cisco Nonstop Forwarding •Stateful Switchover
	NSF/SSO (Nonstop Forwarding with Stateful Switchover)	Cisco Nonstop Forwarding
15.0(1)S	NSF/SSO - Virtual Private LAN Services	NSF/SSO/ISSU Support for VPLS
	•SSO - HDLC •SSO - HSRP •SSO - Multilink Frame Relay •SSO - Multilink PPP •SSO - Multilink PPP (MLP) •SSO - QoS •SSO - VRRP	Stateful Switchover
Cisco IOS XE 3SG
Cisco IOS XE 3.1.0SG	•ISSU •ISSU - IS-IS	Cisco IOS In Service Software Upgrade Process
Cisco IOS XE 3.1.0SG	SSO - HSRP	Stateful Switchover

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