we have the following topology
7750 SR7 (6.1 R6) PE ---- (CISCO XR 12410 IOS 3.6.1) P --- CISCO 7200 NPEG2 with 12.2.33 SRC3 IOS version PE
adjacency & LSPs are ok between 7750 PE & CISCO P. but with LSPs authentication error on CISCO PE.
7750 PE have no problems receiveing everything .
- If we disable received authentication on any of the Cisco PE routers every thing work normally
Is there a possibility that XR P router is changing the authentication key?