Re: SS7

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Jim,

Telco has a goal of maintaining 5 9's where SCTP was developed to carry their SS7 protocol. The FreeBSD stack for SCTP supports IPv4, IPv6 and multi-homing. This protocol immediately recovers from network path failures as it heartbeats against alternative paths. The protocol can sustain a large number of connections over extended periods, takes less time for connection setup than TCP, and overall latency can be less than UDP while still supporting partial reliability.

SCTP has improved error detection suitable for jumbo frames. In addition, the error checking algorithm is now an instruction in i7 core Intel processors and is found in many NICs. The SCTP connection setup returns a cookie to minimize resource exhaustion concerns, to guard against source address spoofing, connection hijacking, and DDoS attacks.

http://www.iec.org/online/tutorials/ss7_over/index.asp

-Doug

On May 20, 2009, at 6:04 AM, jhanley@xxxxxxxxxx wrote:

Dear Sir or Madam,

Is there a working group on converging legacy protocol stacks and mapping legacy stacks addressing mechanisms into IPv6 addressing? For example, RFC 4291 & 4038 specifies that ::ffff:x.y.z.w represents IPv4 node x.y.z.w - is there a similar draft concept for specifying a Message Transfer Part
point code for an SS7 stack or other telephony protocol network layer
mechanisms into IPv6 addresses?

Thanks much,
-Jim Hanley



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Jim Hanley        REDCOM Laboratories, Inc.
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