Ethernet Overview
Ethernet modules support the following Ethernet interfaces:
This section describes features that are available with Ethernet interfaces.
Ethernet modules use the Address Resolution Protocol (ARP) to obtain MAC addresses for outgoing Ethernet frames. For more information about ARP, see JUNOSe IP, IPv6, and IGP Configuration Guide, Chapter 1, Configuring IP.
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NOTE: Read Configuration Tasks for Ethernet before you begin to configure an Ethernet interface. |
Features
Ethernet interfaces support the following features:
- Routing of IP packets.
- Quality of Service (QoS) classification.
- High-density Ethernet. (For information, see High-Density Ethernet.)
- Virtual LAN (VLAN) configurations. (For information, see Configuring VLANs.)
- Stacked Virtual LAN (S-VLAN) configurations. (For information, see Configuring S-VLANs.)
- Configurations with higher-level protocols. (For information, see Configuring Higher-Level Protocols over Ethernet.)
- Layer 2 Tunneling Protocol (L2TP. For information, see L2TP.)
- Multinetting. (For information, see Multinetting.)
L2TP
Most Ethernet interfaces support L2TP. To use L2TP, you must first create a PPP interface. See JUNOSe Broadband Access Configuration Guide, Chapter 11, L2TP Overview for information about configuring L2TP.
Multinetting
Ethernet interfaces, except for bridged Ethernet interfaces, support multinetting; that is, adding more than one IP address to an IP interface. If you want to add multiple IP addresses to a single IP interface, use the ip address command with the secondary keyword, which is described in JUNOSe IP, IPv6, and IGP Configuration Guide, Chapter 1, Configuring IP.