L3 redundancy.pdf - the Netgroup at Politecnico di Torino

HSRP and load sharing (2)• Multiple HSRP groups• Multi-group HSRP (mHSRP)• One router active for the first group, the other active for thesecond group• Clients are configured half with the first DG, half with the second• Note that load sharing in ingress does not depend on HSRP• Ingress traffic is handled by the routing protocol on the WAN side(e.g. BGP multi-homing)• Is it really needed?• Often corporate networks have much more incoming thanoutgoing traffic• In this case, the egress bandwidth of a single link may be enough31