Overview of which functionality is supported on each platform.įor more information about ISA and ESA, see the 7450 ESS,ħ750 SR, and VSR Multiservice ISA and ESA ESAs can only be configured in MDA redundancy mode, but MDA refers to the ESA VM itself, not the MDA on which the ESA VM is connected.Īll descriptions in the remainder of this chapter apply to both ISA and ESA, even when only the ISAs can be provisioned in either an IOM resiliency mode or MDA redundancy mode, where one MDA equals one ISA. A WLAN-GW group can be used in any place where a NAT group is expected, but a NAT group cannot be used as a WLAN-GW group.įor resiliency, standby ESAs and ISAs can be provisioned. ISAs and ESAs in a WLAN-GW group can be configured for NAT functions also. Load-balanced over ESAs or ISAs to maximize resource usage. WLAN-GW tunnels and sessions are automatically
The WLAN-GW functionality described in this chapter isĮxecuted on these ISAs or ESAs. Of either Integrated Services Adapters (ISAs) or Extended Services Appliances (ESAs). To operate a Nokia Wi-Fi Gateway, a WLAN-GW group must be provisioned. With the bridged AP using GRE tunnels, the WLAN-GW solution elements are discussed in the following sections. WLAN-GW functions on existing BNGĪP Connectivity to the WLAN-GW could be direct Ethernet (tagged or untagged) or could be Ethernet over GRE. The WLAN AP acts as a bridge, switching Ethernet frames into a GRE tunnel terminating on an MS-ISA in the WLAN-GW. In case of Layer 3 aggregation, supported connectivity option is Ethernet over GRE (or Eth-over-MPLS over GRE) tunnel originating from the AP/AC,Īnd terminating on the WLAN-GW. In case of Layer 2 aggregation the connectivity to the WLAN-GW could be tagged or untagged Ethernet. WLAN connectivity to the WLAN-GW could be over a Layer 2 aggregation or an Layer 3 aggregation network (typical when WLAN-GW is upstream of an existing BNG or CMTS).
WLAN-GW functions could be on a standalone 7750 as shown in Standalone WLAN-GW or could be an add-on functionality on existing 7750 based BNG as shown in WLAN-GW functions on existing BNG. The connectivity from WLAN AP or AC can be over any existing access technology (DSL, PON, Fiber, DOCSIS, and so on), with Ethernet based connectivity from the access node (DSLAM, OLT, Eth MTU, Layer 2 CMTS) to the WLAN-GW. The 7750 SR serves as a WLAN Gateway (WLAN-GW) providing Layer 3 termination and ESM for these subscribers. The WLAN access can be from public hot-spots (indoor or outdoor APs), venues, enterprises, or home-spots (with public SSID). The WLAN access enables a service provider to offer a mobile broadband service to its subscribers or to offload traffic on its or a partner’s macro cellular (3G/4G) network. This solution set adds support for managing subscribers gaining network access over WLAN.
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