Junos® OS Ethernet Interfaces Configuration ... - Juniper Networks

• VLAN rules describe how the router distributes packets. Two VLAN rules are provided
by the CLI:
• Odd-Even rule—Odd number VLAN IDs go to PFE1; even number of VLAN IDs go to
PFE0.
• Hi-Low rule—VLAN IDs 1 through 2047 go to PFE0; VLAN IDs 2048 through 4096 go
to PFE1.
• When the 100-Gigabit Ethernet PIC is configured in VLAN steering mode, it can be
configured in a two physical interfaces mode or in aggregate Ethernet (AE) mode:
• Two physical interfaces mode—When the PIC is in the two physical interfaces mode,
it creates the physical interfaces et-x/0/0:0 and et-x/0/0:1. Each physical interface
can configure its own logical interface and VLAN. The CLI enforces the following
restrictions at the commit time:
• The VLAN ID configuration must comply with the selected VLAN rule.
• The previous restriction implies that the same VLAN ID cannot be configured on
both physical interfaces.
• AE mode—When the PIC is in aggregated Ethernet mode, the two physical interfaces
on the same PIC are aggregated into one AE physical interface. The PIC egress traffic
is based on an AE internal hash algorithm. The PIC ingress traffic steering is based
on the customized VLAN ID rule. The CLI enforces the following restrictions at the
commit time:
• The PICs AE working in VLAN steering mode includes both links of that PIC, and
only the links of that PIC.
• The PIC AE working in SA multicast steering mode can include more than one
100-Gigabit Ethernet PIC to achieve more than 100 gigabit Ethernet capacity.
To configure SA multicast mode, use the set chassis fpc slot pic slot forwarding-mode
sa-multicast command.
SA Multicast Mode To configure SA multicast mode on a Juniper Networks 100-Gigabit Ethernet PIC in FPC
0, PIC 0 for interconnection with another Juniper Networks 100-Gigabit Ethernet PIC, use
the set chassis fpc slot pic slot forwarding-mode sa-multicast command. You can use the
show forwarding-mode command to view the resulting configuration, as follows:
Copyright © 2012, Juniper Networks, Inc.
[edit chassis fpc slot pic slot]
user@host# show forwarding-mode
forwarding-mode {
sa-multicast;
}
Chapter 27: Configuring 100-Gigabit Ethernet PICs/MICs
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