Category Archives: Uncategorized

Downgrade Software on Router That Runs Cisco IOS-XE SD-WAN to Classic Cisco IOS-XE Software

Problem The user cannot configure boot system flash bootflash: image settings in order to boot the original Cisco IOS-XE image: router#config-transaction admin connected from using console on routerrouter(config)# boot ? ^ % Invalid input detected at ‘^’ marker. router(config)# boot system flash bootflash:c1100-universalk9_ias.16.06.05.SPA.bin ——————-^ syntax error: unknown command Solution The procedure is similar to a software… Read More »


Metro Ethernet Services

Type of services offered by Metro E E-Line (Ethernet Line Service) point-to-point connection between two sites Just think like you have a direct cable from branch to HQ Another common name for E-Line is VPWS (Virtual Private Wire Service) E-LAN (Ethernet LAN Service) It’s a full-mesh topology that acts like a big switch Commonly used… Read More »