1. iptel Working Group IETF 52

2. Agenda Agenda Bash [Rosenberg] 2m CPL/TRIP Updates [Rosenberg] 5m TRIP MIB [Walker] 10m Gateway Registration Scenarios: Internet2 [Schulzrinne] 5m Scenarios: Carrier [Peterson] 5m Requirements [Rosenberg] 20m Attributes [Bangalore] 10m

3. TRIP and CPL TRIP –-09 Approved as RFC on 9/13/01 –Getting close to top of editors queue, maybe 3-4 weeks CPL –-05 just issued –FINALLY reconciles iCal integration We are fully compliant Offline expansion solves many problems –Added language-switch –Many other minor fixes –New WGLC ends 12/21/01

4. High Level Requirements 1.Fast call setups 2.Conveys failures of gateways rapidly 3.Conveys re-starts of gateways rapidly 4.Proxy has some way to know available capacity 5.Security: mutual authentication, integrity. Privacy less critical. 6.Convey routing preferences 7.Timeliness of attribute information 8.Extensible attributes 9.Efficient 10.Centralization of policy 11.Proxies in ITAD make independent policy decisions 12.Discovery?

5. Functional Requirements Have notion of connection between LS & GW Allow establishment of connection in either direction Allow for GW to propagate attributes to LS –Per gateway –Per trunk group –Per route Static and dynamic attributes Extensible attribute set Allow rapid keepalives in both directions –Efficient Allow negotiation of keepalive interval Support partial updates Allow LS to impose filters on GW –Only specific attributes –Rate limitation –Thresholds