Cisco Cisco IOS Software Release 12.2(27)SBC
Cisco IOS High Availability Features in Cisco IOS Release 12.2(33)XNE
2
ISSU - Frame Relay
ISSU - GLBP
ISSU - HDLC
ISSU - HSRP
ISSU - ISIS
ISSU (IOS In-Service Software Upgrade)
ISSU - PPP / MLP
ISSU - QoS
ISSU - Remote Access to MPLS VPN
ISSU - SNMP
ISSU - VRRP
NSF Awareness - EIGRP
NSF Awareness (Nonstop Forwarding Awareness)