HPE FlexFabric 5700 Series Configuration Guide

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2. When an ARP request arrives, the master (Router A) selects a virtual MAC address based on
the load balancing algorithm to answer the ARP request. In this example, Router A returns the
virtual MAC address of itself in response to the ARP request from Host A, and returns the virtual
MAC address of Router B in response to the ARP request from Host B. See Figure 34.
Figure 34
Answering ARP requests
3. Each host sends packets to the returned MAC address. As shown in Figure 35, Host A sends
packets to Router A and Host B sends packets to Router B.
Figure 35 Sending packets to different routers for forwarding
Virtual forwarder
Virtual forwarder creation
Virtual MAC addresses enable traffic distribution across routers in a VRRP group. To enable routers
in the VRRP group to forward packets, VFs must be created on them. Each VF is associated with a
Host A Host B
Router A
Master
Router B
Backup
Network
Gateway IP: 10.1.1.1/24 Gateway IP: 10.1.1.1/24
Virtual MAC: 000f-e2ff-0011
Virtual IP address:10.1.1.1/24
Virtual MAC: 000f-e2ff-0012
Virtual IP address:10.1.1.1/24
ARP request
Target IP: 10.1.1.1/24
ARP reply
Target MAC: 000f-e2ff-0011
ARP request
Target IP: 10.1.1.1/24
ARP reply
Target MAC: 000f-e2ff-0012

HPE FlexFabric 5700 Series Specifications

General

Product Line	HPE FlexFabric
Model	5700 Series
Power Supply	Redundant power supply options
Layer Support	Layer 2/3
Management	HPE Intelligent Management Center (IMC), CLI, SNMP
Routing Protocol	RIP, OSPF, BGP, IS-IS
Features	Virtualization
Compliant Standards	IEEE 802.1D, IEEE 802.1Q, IEEE 802.1w, IEEE 802.1s, IEEE 802.3ad, IEEE 802.3ae
Operating Temperature	32°F to 113°F (0°C to 45°C)
Operating Humidity	10% to 90% (noncondensing)
Latency	Less than 1 µs