Added clarification about underlay and overlay topologies

Refreshed OTN Tunnel draft

Updates L1 Types as suggested by Deborah (#165)

Updates L1 Types as suggested by Deborah
Reimplemented changes in PR #156 which has been lost with PR #161
Removed FICON identities
Removed duplicated case+when statements

Merge pull request #149 from italobusi/otn-tunnel-kramdown

Converted OTN Tunnel draft to kramdown

Merge pull request #106 from italobusi/otn-topo-update

Prepare for OTN topology WG LC

Draft Update

Update according to draft-ietf-ccamp-otn-tunnel-model-10

Merge pull request #38 from haomianzheng/layer1-types-update

A summary for IETF 106

Merge pull request #35 from haomianzheng/otn-eth-topology-update

Otn / ETH Model update for IETF 105 drafts.

to commit -07 (#33)

for draft-zheng-ccamp-client-signal-yang-07. 
- Solving the issue from Tom Petch on the list about -06; 
- Addressing the issue about 'transport', replaced by 'transport network'.

Add files via upload

draft-busizheng-teas-mpls-tp-yang-00