HP A5120 EI Series Installation Manual page 47

Figure 43 Use 2-port interface cards to set up single-link IRF connection
MOD1
1
If 2-port interface cards are used and IRF links are aggregate, follow these guidelines on connecting two
neighboring switches:
The ports on the interface card MOD 1 on one switch must connect to the ports on the interface

card MOD 2 on the other switch.
A port on one interface card can connect to any port on the other interface card, as shown in

44. For example, you can connect the left port on one interface card to the left or right port on the
other interface card.
Figure 44 Use 2-port interface cards to set up multi-link IRF connection
If 1-port interface cards are used, follow these guidelines on connecting neighboring switches:
If both of the switches use 1-port interface cards, the port on MOD 1 on one switch must connect to

the port on MOD 2 on the other switch (see callout 1 in
If one switch uses a 1-port interface card but the other switch uses a 2-port interface card:

If the 1-port interface card is in the MOD 1 slot, the port on the card must connect to the right

port on the 2-port interface card (see callout 2 in
If the 1-port interface card is in the MOD 2 slot, the port on the card must connect to the left port

on the 2-port interface card.
MOD2
42
MOD2
MOD1
2
Figure 45).
Figure 45.)
Figure