Gigabit Ethernet Accounting and Policing Overview
For Gigabit Ethernet IQ PICs and Gigabit Ethernet PICs with SFPs (except the 10-port Gigabit Ethernet PIC and the built-in Gigabit Ethernet port on the M7i router), you can configure granular per-VLAN class-of-service (CoS) capabilities and extensive instrumentation and diagnostics on a per-VLAN and per-MAC address basis.
VLAN rewrite, tagging, and deleting enables you to use VLAN address space to support more customers and services.
VPLS allows you to provide a point-to-multipoint LAN between a set of sites in a VPN. Ethernet IQ PICs and Gigabit Ethernet PICs with SFPs (except the 10-port Gigabit Ethernet PIC and the built-in Gigabit Ethernet port on the M7i router) are combined with VPLS to deliver metro Ethernet service.
For Gigabit Ethernet IQ2 and IQ2-E and 10-Gigabit Ethernet IQ2 and IQ2-E interfaces, you can apply Layer 2 policing to logical interfaces in the egress or ingress direction. Policers are configured at the [edit firewall] hierarchy level.
Table 1 lists the capabilities of Gigabit Ethernet IQ PICs and Gigabit Ethernet PICs with SFPs (except the 10-port Gigabit Ethernet PIC and the built-in Gigabit Ethernet port on the M7i router).
Table 1: Capabilities of Gigabit Ethernet IQ and Gigabit Ethernet with SFPs
Capability | Gigabit Ethernet IQ (SFP) | Gigabit Ethernet (SFP) |
|---|---|---|
| Layer 2 | ||
802.3ad link aggregation | Yes | Yes |
Maximum VLANs per port | 384 | 1023 |
Maximum transmission unit (MTU) size | 9192 | 9192 |
MAC learning | Yes | Yes |
MAC accounting | Yes | Yes |
MAC filtering | Yes | Yes |
Destinations per port | 960 | 960 |
Sources per port | 64 | 64 |
Hierarchical MAC policers | Yes, premium and aggregate | No, aggregate only |
Multiple TPID support and IP service for nonstandard TPIDs | Yes | Yes |
Multiple Ethernet encapsulations | Yes | Yes |
Dual VLAN tags | Yes | No |
VLAN rewrite | Yes | No |
| Layer 2 VPNs | ||
VLAN CCC | Yes | Yes |
Port-based CCC | Yes | Yes |
Extended VLAN CCC Virtual Metropolitan Area Network (VMAN) Tag Protocol | Yes | Yes |
| CoS | ||
PIC-based egress queues | Yes | Yes |
Queued VLANs | Yes | No |
VPLS | Yes | Yes |
For more information about configuring VPLS, see the Junos VPNs Configuration Guide and the Junos Feature Guide.
You can also configure CoS on logical IQ interfaces. For more information, see the Junos Class of Service Configuration Guide.
