1. 1 Two Port MAC Relay Scope - Revised David W. Martin Nortel v00 IEEE 802.1 May 9-13, 2005 Berlin

2. 2 Agenda Two Port MAC Relay IEEE P802.1aj Task Group  Application Recap  Issues From March  Proposed Revised (Minimal) Functionality  TPMR Model

3. 3 TPMR Application Example Two Port MAC Relay IEEE P802.1aj Task Group TPMR 802.1ad Bridge Extension Link Customer Location Operator Network Edge UNI CLE CPE MAN Metro Node User Link

4. 4 Issues From March Two Port MAC Relay IEEE P802.1aj Task Group  Could be used with non-802.3 links  Sub-rate implies service awareness 1 (and complexity)  Pause usage on Extension Link questionable  802.3ah OAM only needed on Extension Link  Define a TPMR MIB 1 Service awareness: Bandwidth profile (CIR, CBR) provisioning, enhanced statistics binning (out-of-profile discards)

5. 5 TPMR Functions: Forwarding Two Port MAC Relay IEEE P802.1aj Task Group  Port-based relay  Not VLAN-aware  Simple port-based forwarding decisions  No MAC learning  Transparent to STP, GARP, MRP protocol families

6. 6 TPMR Functions: Links Two Port MAC Relay IEEE P802.1aj Task Group  Define at 802.1D relay ISS **  Full-rate support only **  802.3x support only to send Pause to CPE device **  Transparent to 802.3ad Link Agg protocols (new)  Buffer management  Report link failure from one side to other (PAR)

7. 7 Two Port MAC Relay IEEE P802.1aj Task Group TPMR Functions: Management  Powers up in active operational default state  802.3ah OAM on Extension Link only **  User Link port configured & monitored via single OAM Client and Extension Link 802.3ah OAM  Simple Bridge Management subset via OAM Client  Define a TPMR MIB **

8. 8 Two Port MAC Relay IEEE P802.1aj Task Group TPMR Functions: Management (cont’d)  No SNMP (or TL1)  No IP address  TPMR MIB translation (to SNMP or TL1) done at Metro Node

9. 9 TPMR Model Two Port MAC Relay IEEE P802.1aj Task Group MAC PHY MAC Control (Pause) MAC PHY (null)  Managed entirely via 802.3ah OAM over Extension Link User Link Extension Link 802.3ah OAM Data Relay Buffer Mgmt OAM Client CO Facing CPE Facing

10. 10 Next Steps Two Port MAC Relay IEEE P802.1aj Task Group  Incorporate into first draft

11. 11 Reference

12. 12 802.3ah Clause 57 OAM Sublayer Two Port MAC Relay IEEE P802.1aj Task Group

13. 13 OUI-Extensible 802.3ah OAM Two Port MAC Relay IEEE P802.1aj Task Group  OAMPDU code ‘FE’  Information OAMPDU TLV type ‘FE’  Event Notification OAMPDU TLV type ‘FE’

14. 14 802.3 Layers Two Port MAC Relay IEEE P802.1aj Task Group 802.3x Pause MAC – Media Access Control Reconciliation MII MDI PCS PMA PMD Medium MAC Control (Optional) 802.3ah OAM (Optional) 802.3ad Link Aggregation (Optional) LLC, ISS MAC Client 802.3x Pause MAC – Media Access Control Reconciliation MII MDI PCS PMA PMD 802.3ah OAM Medium

15. 15 TPMR 802.1 /.3 Protocols Handling Two Port MAC Relay IEEE P802.1aj Task Group