Qlogic iSR6142 Instrukcja Użytkownika Pobierz pdf (Strona 10)

SN0051408-00 C 10

Figure 4-1. Single E_Port

Figure 4-2 shows how a Fibre Channel switch with more than one online E_Port must determine from

which E_Port an incoming Fibre Channel frame is routed (sent) out.

Figure 4-2. Dual E_Ports

Figure 4-3 shows a simple, single E_Port topology between two non-high availability (HA) SANs. All

FCIP traffic flows across this single link.

Figure 4-3. Single E_Port, Single Switches

Figure 4-4 shows dual E_Ports connecting two non-HA SANs. This configuration provides Fibre

Channel link level failover protection and can yield additional bandwidth if the following conditions are met:

 The IP link between the iSR6142s can utilize the additional throughput.

 The Fibre Channel switches load balance traffic across multiple E_Ports. Check with your Fibre

Channel switch vendor to verify this (most require additional licensing).

The addition of a second iSR6142 at each site provides both link level and iSR6142 failure protection.

FC Switch

Incoming Frame

Frame Sent

1 F_Port/FL_Port/N_Port

Legend

2 E_Port

FC Switch

Incoming Frame

1 F_Port/FL_Port/N_Port

Legend

2 E_Port

Fibre Channel Switch Now

Decides Which Port to Use

FC SwitchFC Switch

iSR6142 iSR6142WAN

FC FC

FC SwitchFC Switch FC SwitchFC Switch

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Qlogic iSR6142 Instrukcja Użytkownika Strona 10