LSP Establishment Method

[abdul.qadir5001]

An LSP can be established by manually establishing hops or by the label distribution protocols. Is this a right statement

[Giuseppe Larosa]

Hello @abdul.qadir5001 ,

yes it  can be accepted , when we specify an explicit path we are talking of LSPs that are setup by RSVP TE , the only standard label distribution protocol is LDP   ( the old Cisco TDP is not supported anymore).

However, an MPLS TE tunnel with no explicit path will use a dynamic path in this case RSVP TE acts as a label distribution protocol for this LSP and will find a path that satisfy the FLOWSPEC parameters (bandwidth)

Hope to help

Giuseppe

[Georg Pauwen]

Hello,

that statement is correct. LSPs can be either static or dynamic. 

Have a look at the link below, which explains it very well I think...

https://support.huawei.com/enterprise/en/doc/EDOC1100055043/78868833/lsp-establishment