Switch Fabric Components And Descriptions; M320 Sib Description; Figure 23: Sib-M - Juniper M320 Hardware Manual

CHAPTER 8
Switch Fabric Components and
Descriptions

M320 SIB Description

Copyright © 2015, Juniper Networks, Inc.
M320 SIB Description on page 79
M320 Performance for Different SIB Configurations on page 80
M320 SIB LEDs on page 81
The Switch Interface Boards (SIBs) provide the switching function to the destination
FPC. The SIBs (see Figure 23 on page
up to a total of 385 million packets per second (Mpps) of forwarding with the maximum
configuration.
SIBs are located at the center rear of the router chassis in the slots labeled
SIB3 (top to bottom). The M320 router can be configured with two, three, or four SIBs.
You can upgrade from two to three SIBs or from three to four SIBs without resetting or
stopping Packet Forwarding Engines.
Each FPC has a dedicated ASIC with up to four high-speed links that connect to the SIBs
(one link per SIB).
SIBs are hot-insertable and hot-removable.

Figure 23: SIB-M

Each SIB consists of the following components:
79) create the switch fabric for the router, providing
through
SIB0
79