IP addresses
... layer 3 IP address is known. If host ‘A’ needs to send a a data packet to host ’B’, host ‘A’ broadcasts ARP request packet containing ‘A’s MAC address. Host ‘B’ upon receiving the ARP request replies with its MAC address directly (unicast) to host ‘A’ while other stations discard the ARP request. Ho ...
... layer 3 IP address is known. If host ‘A’ needs to send a a data packet to host ’B’, host ‘A’ broadcasts ARP request packet containing ‘A’s MAC address. Host ‘B’ upon receiving the ARP request replies with its MAC address directly (unicast) to host ‘A’ while other stations discard the ARP request. Ho ...
Integrated Dynamic IP and Wavelength Routing in IP over WDM
... The explicit route is then communicated back to the ingress router which then uses a signaling mechanism such as RSVP or LDP to set up the path to the egress and to reserve bandwidth on each link on the path. With MPLS integration into the optical layer, the same protocols should be able to set up w ...
... The explicit route is then communicated back to the ingress router which then uses a signaling mechanism such as RSVP or LDP to set up the path to the egress and to reserve bandwidth on each link on the path. With MPLS integration into the optical layer, the same protocols should be able to set up w ...
Types of networks based on physical scope Local area network
... Types of networks based on physical scope Local area network (VPLS) services :~ STC provides (VPLS) services as network's default, so they provide this service to concept of Virtual Private Network to enable the clients business to link set of points to others customers form other places through the ...
... Types of networks based on physical scope Local area network (VPLS) services :~ STC provides (VPLS) services as network's default, so they provide this service to concept of Virtual Private Network to enable the clients business to link set of points to others customers form other places through the ...
IP Routing
... IP layer in end-system hosts and in the router work together to route packets from source to destination. IP layer in each host and router maintains a routing table, which is used to route the packets based on IP address. If a destination host is directly connected to the originating host by a ...
... IP layer in end-system hosts and in the router work together to route packets from source to destination. IP layer in each host and router maintains a routing table, which is used to route the packets based on IP address. If a destination host is directly connected to the originating host by a ...
Slides for Chapter 3: Networking and Internetworking
... Protocols at this level transmit data in a network representation that is independent of the representations used in individual computers, which may differ. Encryption is also performed in this layer, if required. At this level reliability and adaptation are performed, such as detection of failures ...
... Protocols at this level transmit data in a network representation that is independent of the representations used in individual computers, which may differ. Encryption is also performed in this layer, if required. At this level reliability and adaptation are performed, such as detection of failures ...
florida institue of technology
... B. Suppose that host A is connected to a router R1, R1 is connected to another router, R2, and R2 is connected to host B. Suppose that a TCP message that contains 900 bytes of data and 20 bytes of TCP header is passed to the IP code at host A for delivery to B. Show the Total length, Identification, ...
... B. Suppose that host A is connected to a router R1, R1 is connected to another router, R2, and R2 is connected to host B. Suppose that a TCP message that contains 900 bytes of data and 20 bytes of TCP header is passed to the IP code at host A for delivery to B. Show the Total length, Identification, ...
Binod_nepalPresentation
... GRE speeds up traffic flow. GRE used with routing protocol can significantly reduce time taken by IPsec keep-alive messages to detect tunnel outage and optionally fail over to using different tunnel. ...
... GRE speeds up traffic flow. GRE used with routing protocol can significantly reduce time taken by IPsec keep-alive messages to detect tunnel outage and optionally fail over to using different tunnel. ...
ppt
... switching rate: rate at which packets can be transfer from inputs to outputs often measured as multiple of input/output line rate N inputs: switching rate N times line rate desirable ...
... switching rate: rate at which packets can be transfer from inputs to outputs often measured as multiple of input/output line rate N inputs: switching rate N times line rate desirable ...
Firewalls
... Foundation of any firewall system Applies a set of rules to each incoming IP packet and then forwards or discards the packet (in both directions) The packet filter is typically set up as a list of rules based on matches to fields in the IP or TCP header context is not checked Two default policies (d ...
... Foundation of any firewall system Applies a set of rules to each incoming IP packet and then forwards or discards the packet (in both directions) The packet filter is typically set up as a list of rules based on matches to fields in the IP or TCP header context is not checked Two default policies (d ...
NFV_SDN - Computer Networks
... Segment Routing SDN • MPLS or IPv6 data plane • No RSVP-TE & LDP • Centralized control plane ...
... Segment Routing SDN • MPLS or IPv6 data plane • No RSVP-TE & LDP • Centralized control plane ...
Week Nine
... One bit pointer – tells whether this is a one byte header or a two byte header. If second byte is included, this byte tells where the data starts within the payload (in case the payload does not contain a full 46 bytes of data) Three-bit sequence number – used to tell if a cell is lost or mis-insert ...
... One bit pointer – tells whether this is a one byte header or a two byte header. If second byte is included, this byte tells where the data starts within the payload (in case the payload does not contain a full 46 bytes of data) Three-bit sequence number – used to tell if a cell is lost or mis-insert ...
Ensuring QoS in Your VoIP Development
... where speech quality is computed by injecting a speech like signal at one end and analysing the degraded signal at other end of the network. ...
... where speech quality is computed by injecting a speech like signal at one end and analysing the degraded signal at other end of the network. ...
Networking II
... • Need to activate ipv6 routing in global configuration mode – Router (config)# ipv6 unicast-routing ...
... • Need to activate ipv6 routing in global configuration mode – Router (config)# ipv6 unicast-routing ...
internetworks - UNC School of Information and Library Science
... reassembling them at the destination, and the IP would be responsible for transmitting the individual packets. For example: the TCP protocol would split up the letter and place it into multiple envelops, while the IP protocol would be in charge of addressing the envelop and making sure it arrived at ...
... reassembling them at the destination, and the IP would be responsible for transmitting the individual packets. For example: the TCP protocol would split up the letter and place it into multiple envelops, while the IP protocol would be in charge of addressing the envelop and making sure it arrived at ...
Part I: Introduction
... Before exchanging networklayer data, data link peers must configure PPP link (max. frame length, authentication) learn/configure network layer information for IP: carry IP Control Protocol (IPCP) msgs (protocol field: 8021) to configure/learn IP address ...
... Before exchanging networklayer data, data link peers must configure PPP link (max. frame length, authentication) learn/configure network layer information for IP: carry IP Control Protocol (IPCP) msgs (protocol field: 8021) to configure/learn IP address ...
transparencies
... • Maximum Amount of data per unit time that a path can provide to an application given the current utilization, protocol in use, operating system and end-host capability [GGF NMWG Hierarchy document] This is metric involves more than just the network element ...
... • Maximum Amount of data per unit time that a path can provide to an application given the current utilization, protocol in use, operating system and end-host capability [GGF NMWG Hierarchy document] This is metric involves more than just the network element ...
QoS Support in 802.11 Wireless LANs
... networking model does not scale beyond a limited number of sites” Internet 2 talk dated 10/15/2003 – “While such circuit-switched networks may not necessarily be suitable for deployment of the scale of the Internet, they are still viable candidates for specialized deployments for connecting a small ...
... networking model does not scale beyond a limited number of sites” Internet 2 talk dated 10/15/2003 – “While such circuit-switched networks may not necessarily be suitable for deployment of the scale of the Internet, they are still viable candidates for specialized deployments for connecting a small ...
Dynamic Routing and OSPF
... routers compute routing tables dynamically based on information provided by other routers in the network routers communicate topology to each other via different protocols routers then compute one or more next hops for each destination - trying to calculate the most optimal path ...
... routers compute routing tables dynamically based on information provided by other routers in the network routers communicate topology to each other via different protocols routers then compute one or more next hops for each destination - trying to calculate the most optimal path ...
ATM: Architecture
... data through packet mode applications. Many of the early implementations of ATM have been focused on the packet mode services, often as a backbone for Frame Relay services. ...
... data through packet mode applications. Many of the early implementations of ATM have been focused on the packet mode services, often as a backbone for Frame Relay services. ...
Document
... • Where are endpoint addresses used: – In CL PS networks, endpoint addresses are carried in packet headers – In CO networks, be it PS or CS, endpoint addresses are carried in connection setup messages ...
... • Where are endpoint addresses used: – In CL PS networks, endpoint addresses are carried in packet headers – In CO networks, be it PS or CS, endpoint addresses are carried in connection setup messages ...
ppt
... • Observations from traceroute between NPDs • Routing loops • Types – forwarding loops, control information loop (count-to-infinity) and traceroute loop (can be either forwarding loop or route change) • Routing protocols should prevent loops from persisting • Fall into short-term (< 3hrs) and long-t ...
... • Observations from traceroute between NPDs • Routing loops • Types – forwarding loops, control information loop (count-to-infinity) and traceroute loop (can be either forwarding loop or route change) • Routing protocols should prevent loops from persisting • Fall into short-term (< 3hrs) and long-t ...
Voice over Mobile IP
... (4) umass proxy sends INVITE to eurecom registrar. (5) eurecom registrar forwards INVITE to 197.87.54.21, which is running keith’s SIP client. (6-8) SIP response sent back (9) media sent directly between clients. Note: also a SIP ack message, which is not shown. ...
... (4) umass proxy sends INVITE to eurecom registrar. (5) eurecom registrar forwards INVITE to 197.87.54.21, which is running keith’s SIP client. (6-8) SIP response sent back (9) media sent directly between clients. Note: also a SIP ack message, which is not shown. ...