improved context help for commands fixed STP configuration issue fixed reliability when loading saved topologies internal updates in preparation for WLAN features miscellaneous fixes and performance improvements

iOS 26 fix additional context help miscellaneous fixes and performance enhancements

added router privileged commands: -show interfaces multilink [1–1023] -show ppp multilink interface multilink [1–1023] -show ppp multilink added router global command: -interface multilink [1–1023] added router interface commands: -ppp multilink -ppp multilink group [1-8] -no ppp multilink -no ppp multilink group fixed port-channel type saving issue updated L3 logic miscellaneous fixes and performance enhancements

added switch privileged command: - show running-config interface port-channel [1-8] added switch interface command: - spanning-tree guard root dhcp option available when adding cloud device additional context help improved layer3 logic miscellaneous fixes and performance enhancements

added switch privileged command: show interface port-channel [1-8] additional contextual help improved context help lookup optimized L2 path logic miscellaneous fixes and performance enhancements

added switch global command: - no interface port-channel [1-8] improved contextual help optimized etherchannel logic miscellaneous fixes and performance enhancements

added more contextual help scenario scoring logic fixed
 miscellaneous fixes and performance enhancements

added router privileged EXEC command: - show ip nat statistics refined NAT processing logic
 improved Layer 2 handling
 expanded contextual help 
 miscellaneous fixes and performance enhancements

stability improvements added more context help other misc. fixes and optimizations

added router privileged commands: - show ip route A.B.C.D updated L3 reachability updated subnet calculator improved tunnel logic added more context help other misc. fixes and optimizations

added privileged commands: dir flash: show ephone summary show ephone registered show telephony-service show ephone-dn added telephony command: create cnf-files added ephone command: no button other misc. fixes and optimizations

added switch global config commands: spanning-tree portfast bpduguard default added switch interface config command: spanning-tree bpduguard enable spanning-tree bpduguard disable updated additional context help info other misc. fixes and optimizations

added router subinterface commands: ip helper-address A.B.C.D no ip helper-address A.B.C.D fixed crash issue caused by connectivity3 lab other misc. fixes and optimizations

added host IP: 169.254.x.x (when no dhcp) updated for bgp scenarios added additional context help info other misc. fixes and optimizations

improved command context help updated IPv6 address validations other misc. fixes and optimizations

added privileged command: show processes cpu show processes memory added switch privileged command: show spanning-tree interface fastethernet PORT/PORT portfast show spanning-tree interface gigabitethernet PORT/PORT portfast added switch global config commands: spanning-tree portfast default no spanning-tree portfast default added switch interface config command: spanning-tree portfast disable no spanning-tree portfast disable spanning-tree portfast trunk no spanning-tree portfast trunk improved command context help fixed submitted crash issue when pinging public IP addresses other misc. fixes and improvements

improved command context help added privileged commands: show cdp entry * protocol show cdp interface show spanning-tree vlan [1-1005] root streamlined PVST mapping and algorithm updated CDP logic other misc. fixes and improvements

added privileged commands: show spanning-tree active show ip eigrp interfaces updated PVST logic other misc. fixes and improvements

updated spanning-tree calculations and logic added switch global command: spanning-tree mode pvst spanning-tree mode rapid-pvst spanning-tree vlan [1-1005] forward-time [4-30] spanning-tree vlan [1-1005] hello-time [1-10] spanning-tree vlan [1-1005] max-age [6-40] no spanning-tree vlan [1-1005] forward-time no spanning-tree vlan [1-1005] hello-time no spanning-tree vlan [1-1005] max-age added privileged commands: show spanning-tree summary show spanning-tree root show spanning-tree interface fastethernet PORT/PORT show spanning-tree interface gigabitethernet PORT/PORT show spanning-tree interface fastethernet PORT/PORT detail show spanning-tree interface gigabitethernet PORT/PORT detail added switch interface configuration command: spanning-tree cost [1-200000000] no spanning-tree cost spanning-tree port-priority [0-240] no spanning-tree port-priority spanning-tree vlan [1-1005] cost [1-200000000] no spanning-tree vlan [1-1005] cost spanning-tree vlan [1-1005] port-priority [0-240] no spanning-tree vlan [1-1005] port-priority other misc. fixes and improvements

added privileged commands: show ip interface show ip interface summary show ip interface fastethernet PORT/PORT show ip interface gigabitethernet PORT/PORT show ip interface loopback [0-2147483647] show ip interface serial PORT/PORT show ip interface serial PORT/PORT/PORT show ip interface tunnel [0-2147483647] added menu options other misc. fixes and improvements

fixed BGP establishment issue other misc. fixes and improvements

improved compatibility with iOS 18 update L3 logic for BGP other misc. fixes and improvements

added subnet practice answer explanation added command prompt commands: arp -a arp -d * telnet A.B.C.D [0-65535] added console command: history size [0-256] no history size added general option setting: hide CIDR on port labels other misc. fixes and improvements

updated switch layer 3 features added switch config interface commands: switchport no switchport - ip address a.b.c.d a.b.c.d - no ip address updated L2 hints updated L3 logic improved BGP process other misc. fixes and improvements

added switch privileged commands: show vlan id [1-4094] show vlan name WORD optimization of BGP process other misc. fixes and improvements