I think you need to clearify what exectly you wanna do.
VOIP signaling protocol H323,SIP and MGCP
Audio stream goes into RTP.
RAS Gatekeeper Discovery
There are two processes by which H.323 terminals/gateways discover their zone gatekeepers:
Unicast Discovery (manual method)?Uses UDP port 1718. In this process, endpoints are configured with the gatekeeper IP address and can attempt registration immediately. The gatekeeper replies with a gatekeeper confirm (GCF) or gatekeeper rejection (GRJ) message.
Multicast Discovery (auto-discovery)?Uses UDP multicast address 18.104.22.168. Auto discovery enables an endpoint to discover its gatekeeper through a multicast Gatekeeper Request (GRQ) message. Because endpoints do not have to be statically configured for gatekeepers, this method has less administrative overhead. A gatekeeper replies with a GCF or GRJ message. A gatekeeper can be configured to respond only to certain subnets
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...