Aricent VLAN – Multiple Instances (Virtual LAN) is a complete implementation of Port-based, Port-and-Protocol-based, tag and MAC-based VLAN software for switched LAN environments. It can be easily integrated with the Aricent TB/STP software for Transparent Bridging with Spanning Tree Algorithm and Protocol (STAP) support

Figure 1. Aricent VLAN-MI Architecture.

• Supports different types of tagged VLANs: Shared, Independent, and Hybrid VLANs, as per IEEE 802.1Q.
• Supports Port-based, MAC-based, and Port-and-Protocol-based VLAN configuration on per port basis.
• Supports 802.1q Tunneling/1q in 1q/VLAN Stacking, thus expanding the VLAN space in the service provider networks.
• Supports Inter Vlan Routing per virtual context.
• Supports port type configuration as trunk port, access port and hybrid port.
• Supports Ingress and Egress rules that define how to handle incoming and outgoing frames.
• Provides a set of GARP (Generic Attribute Registration Protocol) libraries, which can be used to build GARP applications.
• Supports automatic configuration and management of VLANs by means of GVRP (GARP VLAN Registration Protocol).
• Supports Extended filtering services using GMRP (GARP Multicast Registration Protocol).
• Supports Expedited traffic forwarding, using service classes of multiple levels of priorities.
• Provides interfaces to Transparent Bridge software with STAP support.
• Provides support for easy configuration of VLANs per virtual switch by the Network Administrator using SNMP and CLI.
• Exploits the VLAN features, if available in the hardware, for learning and forwarding of VLAN tagged frames.
• Multiple Spanning Tree Protocol, one per VLAN.
• Conforms to Future Software Architecture for Portability (FSAP2), thus ensuring highly portable code, which uses flexible buffer and timer management libraries.
• Provides support for multiple instances of VLAN, GARP to facilitate virtual switching.

Aricent VLAN reduces the time to market for OEMs and VARs who wish to incorporate the VLAN functionality into their switched-LAN products.
VLANs provide the following key benefits in a switched-LAN environment:

• Improved administration efficiency.
• Controlled Broadcast Activity.
• Enhanced network security.




Other Offerings ------------------------------------------- Protocol Stacks ------------------------------------------- .... WLAN ---- 802.11i ---- 802.11F ------------------------------------------- .... IPV4 ---- IP ---- TCP ---- DNS Relay ---- IGMPv3 ------------------------------------------- .... IPv6 ---- IPv6 Host ---- IPv6 Router ---- V6R - IPv6 Routing ------------------------------------------- .... Unicast Routing ---- RIP ---- OSPF ---- OSPF-TE ---- BGP4 ---- BGP4+ ---- ISIS ------------------------------------------- .... Multicast Routing ---- PIM ---- DVMRP ------------------------------------------- .... Label Switching ---- MPLS ------------------------------------------- .... Layer2 Switching ---- VLAN (GARP, GVRP) ---- RSTP/MSTP ---- Link Aggregation ---- 802.1x ---- IGMP Snooping ------------------------------------------- .... Layer2 Switching-Multiple Instance ---- RSTP/MSTP - MI ---- VLAN - MI (GARP, GVRP) ------------------------------------------- .... Security ---- NAT ---- FIREWALL ---- DHCP ---- IPSec ---- IKE ---- RADIUS ---- TACACS+ ---- 802.1x ------------------------------------------- .... Quality Of Service ---- RSVP ---- QOS ------------------------------------------- .... Fault Tolerance ---- VRRP ---- RM ------------------------------------------- .... Management ---- SNMP ---- ENM ---- HTTP ---- RMON ---- WEB NM ------------------------------------------- .... VPN ---- L2TP ---- PPP ---- IPSec ------------------------------------------- .... WAN Access ---- L2TP ---- PPP ---- FRPVC ---- FRATM ------------------------------------------- .... Narrowband ---- V5.2 ---- ISUP ---- MTP3 ------------------------------------------- .... Optical ---- RM ------------------------------------------- .... ATM ---- UNI3 ---- UNI4 ---- IPOA ---- PNNI ---- LANE2-C ---- LANE2-S ---- MPOA-C ---- MPOA-S ---- ILMI4 ------------------------------------------- ...MORE... ------------------------------------------- OEM Ready Solutions ------------------------------------------- .... Intelligent Switch ---- ISS Overview ---- ISS Enterprise ---- ISS Workgroup ------------------------------------------- .... Enhanced Security Solution ------------------------------------------- ...MORE...