Extreme Networks ExtremeWare XOS 11.3, Manual

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Contents
ExtremeWare XOS 11.3 Concepts Guide
14
Configuring the ESRP Domain ID........................................................................................468
Adding VLANs to an ESRP Domain .....................................................................................468
Enabling and Disabling an ESRP Domain ............................................................................469
Advanced ESRP Features.........................................................................................................469
ESRP Tracking..................................................................................................................469
ESRP Port Restart .............................................................................................................473
ESRP Host Attach .............................................................................................................473
ESRP Port Weight and Don’t Count .....................................................................................474
ESRP Groups ....................................................................................................................475
Displaying ESRP Information ...................................................................................................476
Using ELRP with ESRP............................................................................................................476
Using ELRP with ESRP to Recover Loops ............................................................................477
Configuring ELRP..............................................................................................................477
Displaying ELRP Information..............................................................................................478
ESRP Examples ......................................................................................................................479
Single Domain Using Layer 2 and Layer 3 Redundancy.........................................................479
Multiple Domains Using Layer 2 and Layer 3 Redundancy ....................................................482
ESRP Cautions .......................................................................................................................484
Configuring ESRP and IP Multinetting.................................................................................484
ESRP and STP..................................................................................................................484
ESRP and VRRP ...............................................................................................................484
ESRP Groups and Host Attach............................................................................................484
Port Configurations and ESRP ............................................................................................484
Chapter 22: Virtual Router Redundancy Protocol........................................................................... 485
Overview ................................................................................................................................485
Determining the VRRP Master ..................................................................................................485
VRRP Tracking..................................................................................................................486
Electing the Master Router.................................................................................................488
Additional VRRP Highlights......................................................................................................488
VRRP Operation ......................................................................................................................489
Simple VRRP Network Configuration ...................................................................................489
Fully Redundant VRRP Network..........................................................................................490
VRRP Configuration Parameters................................................................................................491
VRRP Examples ......................................................................................................................492
Configuring the Simple VRRP Network ................................................................................492
Configuring the Fully Redundant VRRP Network...................................................................493
VRRP Cautions .......................................................................................................................494
Assigning Multiple Virtual IP Addresses ...............................................................................494
VRRP and ESRP ...............................................................................................................494
Chapter 23: IPv4 Unicast Routing................................................................................................. 495
Overview of IPv4 Unicast Routing .............................................................................................495
Router Interfaces ..............................................................................................................496
Populating the Routing Table .............................................................................................496
Proxy ARP ..............................................................................................................................499
ARP-Incapable Devices ......................................................................................................499
Proxy ARP Between Subnets ..............................................................................................500
Configuring IPv4 Unicast Routing .............................................................................................500