Cisco 4400 series router

[sheni45]

I have my CCNA but I have 2 4451 routers that use dial peers and run iOS-xe. I know there are classes on working in the Nexus NX-OS. Is there such a thing for the 4451? The command structures and things like dial peers seems far enough removed from normal switch and catalyst commands that I was thinking there might be something I can use to help get into these things better

Thank you

[Richard Burts]

Perhaps this document will be helpful

https://www.cisco.com/c/en/us/td/docs/routers/access/4400/software/configuration/guide/isr4400swcfg/bm_isr_4400_sw_config_guide_chapter_01.html