
© 2009 Cisco Systems, Inc. All rights reserved.
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Cisco PublicBRKBBA-2006
Network Resilience
• 802.1D Spanning Tree for Layer 2 portions of the network
Rapid Spanning Tree and Multiple Spanning Tree enhance recovery
• IP Routing Protocols for Layer 3 portion of the network
Cisco U-PE support full range of protocols (ISIS, OSPF, EIGRP,..)
• Resilient Ethernet Protocol (REP) for access rings
HAG
HAG
N-PE
802.1Q
N:1 VLAN
N:1 VLAN
Non Trunk UNI
U-PE
Non Trunk UNI
PE-AGG
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