Luke Judge

GAITHERSBURG, Md. & BERN, Switzerland–(BUSINESS WIRE)–Patton Electronics Co. (patton.com)—together with Patton-Inalp Networks AG—is now taking orders for the 8-to-24-call SmartNode™ 4670 BRI/FXS/FXO VoIP Integrated Access Device (IAD) with built-in G.SHDSL broadband access.

the newest member of the SmartNode VoIP family lowers provisioning and maintenance costs for carrier-providers by doing the work of three customer-premise-equipment (CPE) devices. Expected to start shipping this may, the SN4670 combines ISDN VoIP gateway, analog VoIP gateway, and G.SHDSL router functions in a single device.

Provisioning the SN4670 on customer sites, broadband providers can offer business-quality IP-based voice, fax and data services for up to 8 BRIs and up to 8 FXS/FXO lines—bundled with high-speed Internet access over 4-wire G.SHDSL. Watch for more WAN options, including Fiber, EFM and ADSL, planned for later this year or available on request.

for Small-to-Medium Enterprises (SMEs), the small-footprint SmartNode 4670 facilitates unified communications by IP-enabling digital ISDN-PBX systems and analog phone, fax, answering-machine, and audio-intercom systems. Delivering G.SHDSL broadband connectivity at speeds up to 11.4 Mbps, the SN4670 supports 8-to-16 voice or fax calls over the Internet or private IP network.

Along with the integrated G.SHDSL modem and 4-port IP-Ethernet switch, the SN4670 offers flexible combinations of 2-to-8 ISDN BRIs and optional 4-to-8 FXS/FXO interfaces.

now through 30 April, Patton offers discounts up to 20 percent on SN4670 pre-orders from qualified channel partners. Discount level depends on order quantity and timing. for details, contact sales@patton.com.

SmartNode offerings now address 98% of all PSTN interface combinations and port-count requirements for SMEs throughout Europe. Patton has shipped over 100,000 SmartNode devices to date. with SmartNode equipment installed in 105 countries so far, Patton VoIP deployments span the globe.

last month Patton announced the SmartNode™ 4660 BRI/FXS/FXO VoIP Gateway-Router for mid-sized enterprises. in February Patton unveiled the SmartNode™ 10200 carrier-grade TDM + VoIP media gateway series, supporting up to 2048 voice or fax calls. SmartNode recently scored its seventh INTERNET TELEPHONY® product-of-the-year award.

adsl Microfilters customer premise equipment, digital isdn, intercom systems, isdn pbx, private ip network, router functions

Well, to quickly answer your question; Prefix Delegation (PD) is considered to be a procedure (mechanism) that is used to automate the delegation of IPv6 prefixes (address blocks). Prefix Delegation is explained in RFC 3769 and is normally used by ISPs, to aid with the process of delegating IPv6 prefixes (address blocks) to their customers.

Cisco’s version of Prefix Delegation (PD) consists of three items a Customer Edge (CE) router, a Provider Edge (PE) router and a AAA server.

The Customer Edge (CE) router which is also known as the Requesting Router (RR) performs like a DHCP client and is located at the customer’s premises; it has the job of requesting IPv6 prefixes (address blocks) from the Provider Edge (PE) router.

The Provider Edge (PE) router which is also known as the Delegating Router (DR) performs like a DHCP server and is located at the ISP’s premises; it has the responsibilities of validating the authenticity and the profile of the Requesting Router (RR) with a AAA server; and also places a route into the ISP’s routing system on the behalf of the Requesting Router (RR) for the delegated prefix.

The reason why the Delegating Router places a route into the ISP’s routing system on the behalf of the Requesting Router (RR) for the delegated prefix; is to avoid the need for a dynamic routing protocol between the Delegating Router (DR) and the Requesting Router (RR). So, in other words, with Cisco’s version of Prefix Delegation the DR and RR are normally directly connected to one another; and only in certain circumstances its appropriate to configure a DHCP Relay router between the DR and RR to allow them to communicate.

Now, just in case if you were wondering; the AAA server that is connected to the DR at the ISP’s location is the server that actually hands out the IPv6 prefixes and passes the IPv6 prefixes to the DR using Radius, so the DR can then pass the IPv6 prefix (address block) information to the RR.

I invite you to visit my website were you’ll find the latest information regarding Cisco IPv6 Design and Implementation Techniques.

adsl Microfilters dhcp client, dhcp relay, dhcp server, pd