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

Junos ®
OS 12.3 Ethernet Interfaces Configuration Guide
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• ethernet-tcc—Ethernet translational cross-connect
• vlan-tcc—Virtual LAN (VLAN) translational cross-connect
• extended-vlan-ccc—Standard Tag Protocol Identifier (TPID) tagging for a
cross-connect
• ethernet-vpls—Ethernet virtual private LAN service
• vlan-vpls—VLAN virtual private LAN service
• flexible-ethernet-services—Allows per-unit Ethernet encapsulation configuration
• Single, stacked, and flexible VLAN tagging modes
• Native VLAN configuration to allow untagged frames to be received on the tagged
interfaces
• Maximum transmission unit (MTU) size of up to 9192 bytes for Ethernet frames
• Link aggregation group (LAG) on single chassis
• Interoperability with other 10-Gigabit Ethernet PICs in M Series and T Series routers in
the LAN PHY and WAN PHY modes
• Interrupt-driven link-down detection mechanism
• Two-to-one oversubscription of traffic across a port group
Traffic from 10 ingress ports to the Packet Forwarding Engine traffic is statically mapped
to one of the 5 egress ports. 10 Gbps of bandwidth toward the Packet Forwarding
Engine is shared by two ingress ports (called a port group), thereby achieving two-to-one
oversubscription. This scheme provides two-to-one oversubscription across a port
group and not across the entire PIC.
• Four queues per physical interface on ingress and eight queues per physical interface
on egress
• A separate control queue per physical interface to ensure that the control packets are
not dropped during oversubscribed traffic. The control queue can be disabled in the
CLI.
• Optical diagnostics
• Behavior aggregate (BA) classification (IPv4 DSCP, IPv6 DSCP, Inet precedence, IEEE
802.1P, IEEE 802.1AD, MPLS EXP) and fixed classification
• Weighted round-robin scheduling with two queue priorities (low and strict-high)
• Committed information rate and peak information rate shaping on a per-queue basis
• Excess information rate configuration for allocation of excess bandwidth
• IEEE 802.3ah Operation, Administration, and Maintenance (OAM)-related operations,
such as the following:
• Link fault management
• Link discovery
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