Things we didn`t get to talk about
... Multiprotocol Label Switching (MPLS) • Original reason for MPLS – Improves performance: simple lookup, no IP header modification • No need to do longest prefix matching ...
... Multiprotocol Label Switching (MPLS) • Original reason for MPLS – Improves performance: simple lookup, no IP header modification • No need to do longest prefix matching ...
Overlay Networks and Tunneling Reading: 4.5, 9.4 Mike Freedman
... • Main idea: Virtual circuit – Packets forwarded based only on circuit idenVfier Source 1 Destination Source 2 ...
... • Main idea: Virtual circuit – Packets forwarded based only on circuit idenVfier Source 1 Destination Source 2 ...
Multi-Protocol Label Switch (MPLS)
... forwarding decisions based solely on the contents of the label. At each hop, the LSR strips off the existing label and applies a new label which tells the next hop how to forward the packet. Label Switch Paths (LSPs) are established by network operators for a variety of purposes, such as to guarante ...
... forwarding decisions based solely on the contents of the label. At each hop, the LSR strips off the existing label and applies a new label which tells the next hop how to forward the packet. Label Switch Paths (LSPs) are established by network operators for a variety of purposes, such as to guarante ...
Document
... An LSP acts as a tunnel carrying multiple VCs VCs are uni-directional, for bi-directional communication, a pair of VCs – one in each direction –is needed. Tunnel LSPs between the PE routers could be created using any protocol like RSVP/TE or LDP PE routers exchange the VC labels via LDP The ...
... An LSP acts as a tunnel carrying multiple VCs VCs are uni-directional, for bi-directional communication, a pair of VCs – one in each direction –is needed. Tunnel LSPs between the PE routers could be created using any protocol like RSVP/TE or LDP PE routers exchange the VC labels via LDP The ...
Ch10
... —IP switching (Ipsilon) —Tag switching (Cisco) —Aggregate route based IP switching (IBM) —Cascade (IP navigator) ...
... —IP switching (Ipsilon) —Tag switching (Cisco) —Aggregate route based IP switching (IBM) —Cascade (IP navigator) ...
QoS in Converged Networks
... Another problem is that, when broadcasts occur, every device on the network can receive them, which is a potential security hazard. 802.1q VLAN (virtual LAN) is a way to separate Ethernet traffic logically, secure Ethernet broadcast domains, organize the network by separating network protocols into ...
... Another problem is that, when broadcasts occur, every device on the network can receive them, which is a potential security hazard. 802.1q VLAN (virtual LAN) is a way to separate Ethernet traffic logically, secure Ethernet broadcast domains, organize the network by separating network protocols into ...
MPLS Slides
... – For each destination one FEC? (all packets to that destination will get same treatment) ...
... – For each destination one FEC? (all packets to that destination will get same treatment) ...
A Foray into MPLS-TE
... • Multiple Protocol Label Switching • Packets are switched through a network through the cunning use of labels • All MPLS enabled routers have forwarding databases that contain a list of all the LSPs (Label Switched Paths (tunnels)) passing through the router, what label and interface a packet shoul ...
... • Multiple Protocol Label Switching • Packets are switched through a network through the cunning use of labels • All MPLS enabled routers have forwarding databases that contain a list of all the LSPs (Label Switched Paths (tunnels)) passing through the router, what label and interface a packet shoul ...
The Network Management Problems
... ERO is a list of layer 3 address hops inside an MPLS cloud Describes a list of MPLS nodes through which a tunnel passes EROs are used by signaling protocols (such as RSVP-TE) to create tunnels ...
... ERO is a list of layer 3 address hops inside an MPLS cloud Describes a list of MPLS nodes through which a tunnel passes EROs are used by signaling protocols (such as RSVP-TE) to create tunnels ...
A TECHNICAL SEMINAR ON CARBON NANOTUBE
... • MPLS are faster and secure as compared to IP routing. • The top label is used to get the traffic through the core, and the inner label is used to push the traffic into the ...
... • MPLS are faster and secure as compared to IP routing. • The top label is used to get the traffic through the core, and the inner label is used to push the traffic into the ...
Chapter 10 Protocols for QoS Support
... • Label switched routers capable of switching and routing packets based on label appended to packet • Labels define a flow of packets between end points or ...
... • Label switched routers capable of switching and routing packets based on label appended to packet • Labels define a flow of packets between end points or ...
Multi-Protocol Label Switching (MPLS)
... header, containing one or more "labels". This is called a label stack. Each label stack entry contains four fields • A 20-bit label value. • a 3-bit Traffic Class field for QoS (quality of service) priority (experimental) and ECN (Explicit Congestion Notification). • a 1-bit bottom of stack flag. If ...
... header, containing one or more "labels". This is called a label stack. Each label stack entry contains four fields • A 20-bit label value. • a 3-bit Traffic Class field for QoS (quality of service) priority (experimental) and ECN (Explicit Congestion Notification). • a 1-bit bottom of stack flag. If ...
yun-MPLS - KEMT FEI TUKE
... MPLS Operation The following steps must be taken for a data packet to travel through an ...
... MPLS Operation The following steps must be taken for a data packet to travel through an ...
Network Layer (Congestion and QoS)
... A lighter approach to QoS IntServ is very powerful but has some severe drawbacks: - There is a setup phase, this cases delay in starting data flow. - Routers need to maintain per-flow state. This approach is flow-based and not very scalable. - Complex router-to-router exchange of flow information. ...
... A lighter approach to QoS IntServ is very powerful but has some severe drawbacks: - There is a setup phase, this cases delay in starting data flow. - Routers need to maintain per-flow state. This approach is flow-based and not very scalable. - Complex router-to-router exchange of flow information. ...
Constraint-based routing
... based on legacy technology like ATM, Frame Relay or Ethernet). The difference between L3 and L2 VPNs can be found in the relation between Provider Edge (PE) and Customer Edge (CE) devices. In layer2 VPNs, the PE is not a peer of the CE. It does not store the customer routes, but just maps the incomi ...
... based on legacy technology like ATM, Frame Relay or Ethernet). The difference between L3 and L2 VPNs can be found in the relation between Provider Edge (PE) and Customer Edge (CE) devices. In layer2 VPNs, the PE is not a peer of the CE. It does not store the customer routes, but just maps the incomi ...
CH3-MPLS-Multiprotocol
... The initial goal of label based switching was to bring the speed of Layer 2 switching to Layer 3. Label based switching methods allow routers to make forwarding decisions based on the contents of a simple label, rather than by performing a complex route lookup based on destination IP address. This i ...
... The initial goal of label based switching was to bring the speed of Layer 2 switching to Layer 3. Label based switching methods allow routers to make forwarding decisions based on the contents of a simple label, rather than by performing a complex route lookup based on destination IP address. This i ...
The Next Generation of IP
... The Next Generation of IP Router: This router can store and manage the state information of data flows. ...
... The Next Generation of IP Router: This router can store and manage the state information of data flows. ...
Untersuchungen zur MAC Address Translation (MAT)
... Multi Protocol Label Switching The MPLS-User Network Interface Implementation and Simulation Results Conclusion ...
... Multi Protocol Label Switching The MPLS-User Network Interface Implementation and Simulation Results Conclusion ...
The Network Management Problem
... IP does not provide traffic engineering capabilities. IP packets have two main sections: header and data. IP header lookups are required at each hop (with the present line-rate technology, lookups are no longer such a big issue. Routing protocol convergence may cause more problems). ...
... IP does not provide traffic engineering capabilities. IP packets have two main sections: header and data. IP header lookups are required at each hop (with the present line-rate technology, lookups are no longer such a big issue. Routing protocol convergence may cause more problems). ...
Economics, Policy and a little MPLS
... • All mechanisms that we add to IP Have some cost - we would like ideally, this cost to be O(C) (Order constant) - I.e. if we add QoS, the cost in terms of messages, router and end system memory, router and end system CPU should just be a constant, ideally! In practice though… • Its likely that some ...
... • All mechanisms that we add to IP Have some cost - we would like ideally, this cost to be O(C) (Order constant) - I.e. if we add QoS, the cost in terms of messages, router and end system memory, router and end system CPU should just be a constant, ideally! In practice though… • Its likely that some ...
Supporting Differentiated Services in MPLS Networks
... forwarding a labeled packet. It contains the outgoing interface (next hop), the data link encapsulation used for the transmitted packets, the outgoing label and the operation (add, replace, or remove) to perform on the label stack. Incoming Label Map (ILM) is a mapping from incoming labels to NHLFEs ...
... forwarding a labeled packet. It contains the outgoing interface (next hop), the data link encapsulation used for the transmitted packets, the outgoing label and the operation (add, replace, or remove) to perform on the label stack. Incoming Label Map (ILM) is a mapping from incoming labels to NHLFEs ...
