link state routing protocol vs distance vector
Distance Vector vs. Link State docx
Ngày tải lên :
06/03/2014, 07:20
...
R1(config-router)#^Z
A
B
2
Distance Vector vs. Link State
Distance Vector
Distance Vector
ã
Updates frequently
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Each router is
"aware" only of its
immediate neighbors
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Slow convergence
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Prone to routing ... 30.0.0.1
30.0.0.2
40.0.0.1
10.0.0.2
40.0.0.2
A
B
1
Distance Vector
Link State
Hybrid
Distance Vector vs. Link State
Route table
Topology
Incremental Update
Periodic UpdateRouting by rumor
A
B C D
X
E
23
OSPF Design
Each ... this
interface
interface
32
OSPF Network Types
50
show ip protocols
show ip protocols
Router#
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Verifies the configured IP routing protocol
processes, parameters and statistics
Verifying OSPF...
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DISTANCE VECTOR PROTOCOL: RIP & IGRP
Ngày tải lên :
06/11/2013, 04:15
... RIP:
Routing Information Protocol version 1 (RIPv1) là một giao thức đơn giản và vì vậy hoạt động hiệu
quả trong những mạng nhỏ ít có những thay đổi. RIP là giao thức đầu tiên trong nhóm distance ... (link failure occurs).
Holddown
Sau khi quyết định rằng một địa chỉ mạng trong bảng định tuyến là không còn hợp lệ, quá
trình định tuyến sẽ chờ trong khoảng thời gian 3 lần thời gian gửi routing ... via "igrp 1", distance 100, metric 8576
Redistributing via igrp 1
Advertised by igrp 1 (self originated)
Last update from 192.168.6.2 on Serial0, 00:00:20 ago
Routing Descriptor Blocks:
*...
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Tài liệu Cisco Systems - Distance vector routing pdf
Ngày tải lên :
17/02/2014, 08:20
... v2.05-26
Summary
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Distance vector- based routing algorithms
(also known as Bellman-Ford algorithms) pass periodic
copies of a routing table from router to router.
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When the topology in a distance vector protocol ... to:
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Describe the features offered by distance vector
routing protocols and give examples of each
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Describe the issues associated with distance
vector routing and identify solutions to those ... router.
Maintaining Routing Information
â 2002, Cisco Systems, Inc. All rights reserved. ICND v2.05-4
ã
Routers pass periodic copies of routing table to neighbor
routers and accumulate distance vectors.
Distance...
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Tài liệu Cisco Systems - Link-State and balanced hybrid routing pdf
Ngày tải lên :
17/02/2014, 08:20
... small event-triggered link- state
updates to all other routers
Link- State Routing Protocols
© 2002, Cisco Systems, Inc. All rights reserved. ICND v2.0—5-6
Link- State Routing
Protocol Algorithms
... v2.05-11
Summary
ã
Link- state routing uses LSAs, a topological
database, the SPF algorithm, the resulting SPF tree,
and a routing table of paths and ports to each
network.
ã
Link- state routing algorithms ...
complex
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Troubleshooting easier than in distance vector routing
© 2002, Cisco Systems, Inc. All rights reserved. ICND v2.0—5-7
Benefits of Link- State Routing
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Fast convergence: changes are...
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Cơ chế hoạt động của các giải pháp nhằm tránh "LOOP" trong giải thuật distance vector
Ngày tải lên :
27/10/2013, 20:15
... trình này cứ lặp đi lặp lại (vì A sẽ gửi lại 1 update nói với B và D rằng la
N1 vẫn good) ===> routing loop
Nguyên nhân:
B và D có thể nhận được update từ A còn C thì không , bởi vì 1 "HÔI ... route bị poison ==> Do có Split horizon,
thông tin về route đến N1 không bị lặp đi lặp lại trên link giữa A và E (count-to-
infinite)
Split horizon with Poison reverse : Bình thường, A không...
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Tài liệu HSRP – Hot Standby Routing Protocol ppt
Ngày tải lên :
11/12/2013, 14:15
...
09:26:26:%STANDBY-6-STATECHANGE: Standby: 0: FastEthernet0/1 state Active-> Init
Reconnect West router:
09:26:57: %STANDBY-6-STATECHANGE: Standby: 0: FastEthernet0/0 state Listen-> ... you can watch the state changes as it
is disconnected and reconnected to the network.
Disconnect West router:
09:26:26:%STANDBY-6-STATECHANGE: Standby: 0: FastEthernet0/0 state Active-> ... they are both connected to the same network. A
routing protocol is not needed. Each router has knowledge of all networks in the network.
IP Routing will need to be enabled on all routers.
...
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Tài liệu Enhanced Interior Gateway Routing Protocol ppt
Ngày tải lên :
12/12/2013, 17:15
... distace vector protocol, link state protocol không phi giải
quyết vấn đề chống loop và thời gian hội tụ rất lớn bởi vì không giống như
routing- by-rumor approach của distance vector các router link ... Routing protocol (EIGRP) là một sự nâng cấp của IGRP. Bên cạnh
những tính chất vốn có IGRP là một distance- vector protocol, EIGRP còn mang
một số tính chất của link state protocol.
Tất cả các distance ... Routing Protocol( EIGRP)
Tác giả: Trần Văn Thành
Enhanced Interior Gateway Routing Protocol( EIGRP)
Lần đầu tiên được đưa vào sử dụng trong phiên bn ISO 9.21, Enhanced Interior
Gateway Routing...
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Tài liệu Choose Routing Protocol pptx
Ngày tải lên :
17/01/2014, 06:20
... can ping it when troubleshooting.
Enhanced Interior Gateway Protocol (EIGRP)
EIGRP is a Cisco proprietary distance- vector routing protocol. It was created to be used with
basically any media ... router an Intermediate System. Thus, the protocol
defines communication from an Intermediate System to another Intermediate System. IS-IS is
a link- state protocol and, like OSPF, divides the network ... OSPF, mostly because there are fewer changes you can make to the protocol s
operation.
Network Topology
IS-IS is a link- state protocol and thus divides the network into a two-level hierarchy...
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Tài liệu Configuring Distance Vector Protocols docx
Ngày tải lên :
18/01/2014, 04:20
... to
basic IP routing protocol configuration.
CERTIFICATION OBJECTIVE 10.02
IP RIP
IP RIP (Routing Information Protocol) comes in two different versions: 1 and 2.
Version 1 is a distance vector protocol ... OBJECTIVE 10.03
IP IGRP
The Interior Gateway Routing Protocol (IGRP) is a Cisco-proprietary routing protocol
for IP. Like IP RIPv1, it is a distance vector protocol. However, it scales better than
RIP ... distance vector protocol. RIP is a very old
protocol and therefore is very stable; in other words, Cisco really doesn’t do that much
development on the protocol, unlike other, more advanced protocols....
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Tài liệu Enhanced Interior Gateway Routing Protocol (EIGRP) pptx
Ngày tải lên :
18/01/2014, 05:20
... Gateway Routing Protocol (EIGRP)
● AS number of the destination
● Configurable administrator tag
● ID of the external protocol
● Metric from the external protocol
● Bit flags for default routing
Route ... to make routing decisions, the results of which are stored in the IP routing table. IP-Enhanced
IGRP is responsible for redistributing routes learned by other IP routing protocols.
Routing Concepts
Enhanced ... learned from the Routing Table Maintenance Protocol (RTMP). The
IP implementation redistributes routes learned from OSPF, Routing Information Protocol (RIP), IS-IS,
Exterior Gateway Protocol (EGP),...
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Tài liệu Hybrid: Enhanced Interior Gateway Routing Protocol (EIGRP) pptx
Ngày tải lên :
24/01/2014, 19:20
...
Gateway Routing Protocol
(EIGRP)
As internetworks grew in scale and diversity in the early 1990s, new routing protocols were
needed. Cisco developed
Enhanced Interior Gateway Routing Protocol ... the most popular routing protocols among network engineers.
EIGRP can be referred to as a hybrid protocol. It combines most of the characteristics of
traditional distance vector protocols with ... characteristics of link- state protocols.
Specifically, EIGRP is “enhanced” by using four routing technologies:
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Neighbor discovery/recovery
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Reliable Transport Protocol (RTP)
ã
DUAL nite-state...
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Báo cáo hóa học: " A scalable multi-sink gradient-based routing protocol for traffic load balancing" pot
Ngày tải lên :
21/06/2014, 00:20
... demand.
Hybrid protocols combine properties of both proactive
and reactive protocols. Among those protocols, it is
known that gradient-based routing protocols which
belong to the proactive protocols ... directly
determined by the routing protocol. Particularly, in large-
scale WSNs, communication protocols should scale with
the number of sensor nodes [4]. Routing protocols pro-
posed in the ... gradient-based routing protocols
In gradient-based routing protocols, no routes are set up
prior to sending data. Nodes are assigned only gradients,
which are equal to the minimum cumulative link (or
node)...
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