sip mpls

Key knowledge points in this document: Principle of CSPF Route selection Parameters that have an effect on the CSPF path selection How does the MPLS te display path be established? cspf--constrained SPF (shorest path tree). Is the core of Mpls te path selection, as we already know, the functions of Mpls te are: 1, Information Release 2, path calculation and

This article is about troubleshooting MPLS ldp. Two devices establish direct-attached LDP neighbors: R2 and R3.r2 's interface Giga 2/0 and R3 interface to establish the LDP's direct-link neighbors. First, review the LDP's neighbor establishment process: LDP utility is the UDP/TCP Port 646来 discovers the neighbor's. So in the future troubleshooting, if the two sides can ping, but can not build a neighbor to check whether the port has been sealed

configuration:1867 bytes!Version 12.4Service Timestamps Debug DateTime msecService Timestamps log datetime msecNo service password-encryption!Hostname R1!Boot-start-markerBoot-end-marker!No AAA New-modelMemory-size Iomem 5!!IP CEFNo IP domain Lookup!IP VRF R1Rd 1:100Route-target Export 1:100Route-target Import 4:100!MPLS Label Range 100 199MPLS Label Protocol LDP!Interface Loopback0IP Address 1.1.1.1 255.255.255.255!Interface Tunnel1IP address 10.0.0

RTP/RTCP/RTSP/SIP/SDP relationship1. RTPReal-time Transport Protocol is a Transport layer protocol for multimedia traffic on the Internet. The RTP protocol details the standard packet format for transmitting audio and video over the Internet. RTP protocols are commonly used in streaming media systems (with the RTCP protocol), video conferencing and a Push-to-talk system (with either a/p or SIP), making it t

This article is from csdn lidp and reposted the famous source. Thank you. For information and technology trends in the VoIP industry, see www.voip123.cn. For the registration function, Asterisk SIP protocol stack provides two services, 1. Asterisk is used as the SIP client and registered with other sip servers.2. Asterisk is used as the

1.1 SIP Message Classification SIP protocol is formed in the form of layer protocol, that is, its behavior is described in a set of relatively independent processing stages, the relationship between each phase is not very close. The SIP protocol divides the messages between the server and the user agent into two categories: the request message and the response me

broadband IP Telephone test network platform (VOIP-VPN) to achieve. Optical bridge users in the voice of the need to focus on the following areas: the scope of business to be broad, you can achieve voice mail, voicemail, address books and many other functions, can be integrated with the computer, data, voice simultaneous implementation. High bandwidth, easy to increase service items, low interference, stable voice quality, low cost, good performance/price ratio. These requirements through Netco

In the process of establishing a session, we must apply it to the SIP protocol. Some friends may not understand this agreement. It doesn't matter. Here we will explain the content of this Protocol. You may be familiar with the SIP protocol. The Session Initialization Protocol is an application layer control protocol. So what are more specific functions and applications? It can be used to create, modify, or

The SIP protocol is an application-layer control protocol used to establish, modify, and terminate multimedia sessions. It draws a lot from mature HTTP protocols (such as text format encoding and method in request messages ), the text-based UTF-8 encoding method can be used to carry the UDP or TCP protocol (UDP preferred ). Similar to the Diameter protocol, SIP also has a basic protocol and many extension p

"swatchmate cube" in smart devices that appeared in 2014 was definitely a surprise to me. As a portable color detection device, it can capture the colors from any object surface, helping users to easily capture these colors. If the cube is reliable, the designer will be able to capture all the wonderful colours of nature through it. So it has become one of the first devices I want to start this year. But the cube is not listed, obviously it is not the protagonist I want to introduce

Rfc3261 Chinese translation [version D] Parallel search: Parallel search. In parallel search, a proxy server sends multiple requests to a possible user location to receive the request response. Serial search: waits for the final response of the previous request before sending the next request. Different from serial search, parallel search sends multiple requests without waiting for the results of previous requests. Provisional response: temporary response. The server is used to indicate the prog

1 Introduction The structure of MPLSMultiprotocol Label Switching protocol is described in [1. A label exchange router can be used for Frame Relay switching. Frame relay switches the routing algorithms at the network layer, such as OSPF, IS-IS, and forward data based on these routing algorithms. You do not need to select a specific frame relay path.Frame Relay switching applies to the top-level current tags in the first DLCIData Link Connection Identifier Field of the frame relay data Link layer

R0 creates a tunnel to R1 to enable multicast. It's very simple to scale up and you can see the configuration at first glance. Wvrp has passed. R0 #Sysname quidway#Multicast Routing-enable#Mpls lsr-ID 1.1.1.1MPLSMPLS teMpls rsvp-teMPLS te CSPF#Interface ethernet0/0/0IP address 192.168.1.1 255.255.255.0PIM SMMPLSMPLS teMPLS te max-link-bandwidth 10000MPLS te max-reservable-bandwidth 5000Mpls rsvp-te#Interface null0#Interface loopback0IP address 1.1.1.1

?? In the network environment, in order to isolate and divide the network, avoid inter-network interference and broadcast storms, define a variety of forms of isolation. There are hardware-based isolation and network protocol isolation, as well as the isolation of subnet segments (subnet masks).?? MPLS and VLAN isolation, based on the software protocol, there is a certain hardware technical support, with these two tags of the packet, before or after t

When there is no peer VRF route, VRF uses MPLS *** to transmit routes to each other ,. After the PE routers at both ends use IGP (PIPE) to build a neighbor, a small pipe (*** V4 cluster) is built in the pipe for ** communication MPLS ** key points: IGP physical links and lo interfaces must be built through BGP large and small water pipes, and reflection must be configured under small water pipes.

Recently, I have been reading mpls vpn, but I have never understood the differences between the two RD and RT parameters in VRF. By searching materials on the Internet for repeated reading and thinking, I finally understood it. The following uses a more understandable metaphor for sharing. For example, if you receive an invitation letter, you need to go to a high-end office building to attend the meeting. Because of the strict security requirements,

Today the work encountered two devices between the SIP packet crawl and analysis, and then combined with the RFC3261 document description, recorded today understand.1.SIP Protocol:Detailed RFC documentation for SIP is visible: rfc3261Session initiation, which allows you to use Internet endpoints (user agents) to find participants and allow you to create a shareab

Today, I encountered the capture and analysis of the SIP packets between the two devices. Then, combined with the instructions in rfc3261 documents, I recorded what I understood today. 1. SIP protocol:The detailed RFC documentation for SIP can be found at: rfc3261Session Initiation (Session Initiation Protocol) allows the use of internet endpoints (User proxies

1.1.1. Route/record-route ? Record-route can be used: -Ensures firewall proxy stays in Path ? A firewall proxy adds record-Route Header -Clients and servers copy record-route and put in Route Header for all messages Request Routing Example: only proxy 3 remains in route 1. ua1 is being ucted to invite "SIP: ua2 @ proxy1" 2. The message shocould be sent to proxy 1 3. The message shocould be sent to proxy 2 4. The message shocould be sent to proxy

Introduction 1. About the SIP protocol Currently, there are three basic communication protocols based on VOIP: H 323, SIP, and MGCP. The following describes the comparison between the H 323 protocol and the SIP protocol. H.323 was proposed by ITU. It attempts to regard IP phones as well-known traditional phones, but the transmission mode is changed from circuit s