I've started looking for another job to climb the ladder. I think I've built up some decent experience where I'm at but it's becoming kind of stagnant and there's no chance of advancement. I've attached an edited resume, constructive criticism on it is more than welcome.
Some things that I'm questioning on it:
1. The summary is brief, too brief?
2. 'Network design and implementation' is on my resume. What I've actually done is move outliers onto a different network and take some off the internet. Unfortunately unmanaged switches so it can't be done the preferred way. I don't know how to word this so I went with a generic term. Any ideas?
3. I've greatly reduced the amount of support 'tickets', really just email, phone and face-to-face support calls from around a dozen a day to

a day on average. I know success like this is often mentioned under the job but I'm not sure how to express it.
4. I didn't do the full migrations of 2003 server to 2012 but assisted with them. Should I put 'assisted' or leave as is?
5. I'm looking to transition into a networking role. Currently plan to send my resume for another Sys Admin position that has cisco equipment and the position works alongside net admins. Should I adjust my resume to more of a network role? I've studied CCENT and have my own lab but I wouldn't say I'm ready to touch production routers and switches without guidance.