Hi,
This should be in the switching section but have a read here:
http://www.juniper.net/techpubs/en_US/junos11.4/topics/concept/ex-series-software-licenses-overview.html
For Juniper Networks EX2200 Ethernet Switches, the following features can be added to basic Junos OS by installing an enhanced feature license (EFL):
- Bidirectional forwarding detection (BFD)
- Connectivity fault management (IEEE 802.1ag)
- IGMP (Internet Group Management Protocol) version 1 (IGMPv1), IGMPv2, and IGMPv3
- OSPFv1/v2 (with 4 active interfaces)
- Protocol Independent Multicast (PIM) dense mode, PIM source-specific mode, PIM sparse mode
- Q-in-Q tunneling (IEEE 802.1ad)
- Real-time performance monitoring (RPM)
Juniper Networks EX3200, EX4200, EX4500, and EX8200 Ethernet Switches require an advanced feature license (AFL) for the following Junos OS features:
- Border Gateway Protocol (BGP) and multiprotocol BGP (MBGP)
- Intermediate System-to-Intermediate System (IS-IS)
- IPv6 protocols: OSPFv3, RIPng, IS-IS for IPv6, IPv6 BGP
- MPLS with RSVP-based label-switched paths (LSPs) and MPLS-based circuit cross-connects (CCCs)