HPE FlexFabric 5700 Series Configuration Manual page 7

Figure 2 A network that contains two IRF domains
Device A
Device C
IRF split
IRF split occurs when an IRF fabric breaks up into multiple IRF fabrics because of IRF link failures,
as shown in
routing and forwarding problems on the network. To quickly detect a multi-active collision, configure
a minimum of one MAD mechanism (see
Figure 3 IRF split
Device A
IRF merge
IRF merge occurs when two split IRF fabrics reunite or when two independent IRF fabrics are united,
as shown in
Figure 4 IRF merge
IRF fabric 1
Device A
Core network
IRF fabric 1
(domain 10)
IRF link
IRF fabric 2
(domain 20)
IRF link
Access network
Figure 3. The split IRF fabrics operate with the same IP address. IRF split causes
IRF fabric
IRF link
Device B
Figure 4.
IRF fabric 2
+
Device B
Device B
Device D
"Configuring MAD").
IRF fabric 1
=
Device A
IRF fabric
=
Device A
3
IRF fabric 2
+
Device B
IRF link
Device B