Implementing eigrpEIGRP supports MD5 authentication. The router identifies itself for every EIGRP packet it sends. The router authenticates the source of each routing update packet that it receives. Each participating neighbor must have the same key configured.
33 trang | Chia sẻ: nguyenlam99 | Ngày: 09/01/2019 | Lượt xem: 1205 | Lượt tải: 0
Cabling in internetworkSpeed and throughput: 10 to 1000 Mb/s Average cost per node: Least expensive Media and connector size: Small Maximum cable length: Varies
18 trang | Chia sẻ: nguyenlam99 | Ngày: 09/01/2019 | Lượt xem: 1171 | Lượt tải: 0
Bài giảng ISIS – CCNP Routing - Cấu hình isisBước 1: Cho phép ISIS bằng lệnh router isis Bước 2: Cấu hình NET, gán area bằng lệnh net networkaddress Bước 3: Cho phép ISIS trên tất cả các interfaces bằng lệnh ip router isis. Kiểm tra bằng các lệnh: • show clns neighbor • show clns interface E0 • show isis database • show isis database detail LSPID
18 trang | Chia sẻ: nguyenlam99 | Ngày: 09/01/2019 | Lượt xem: 1914 | Lượt tải: 0
Implementing ospfThe routing algorithm of OSPF maintains a complex database of topology information, which routers use to maintain full knowledge of distant routers. OSPF is a classless, link-state routing protocol that is widely deployed in many networks. OSPF load-balances across four equal metric paths by default on Cisco routers. OSPF supports plaintext an...
27 trang | Chia sẻ: nguyenlam99 | Ngày: 09/01/2019 | Lượt xem: 1135 | Lượt tải: 0
Understanding ethernetHigh port density Large frame buffers Mixture of port speeds Fast internal switching Switching modes: Cut-through Store-and-forward Fragment-free
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Improving performance with spanning treeA redundant switched topology includes multihomed switches and EtherChannel. A redundant switched topology causes looping issues such as broadcast storms. The 802.1D STP establishes a loop-free network. The original STP has been enhanced by PVST+ and RSTP.
30 trang | Chia sẻ: nguyenlam99 | Ngày: 09/01/2019 | Lượt xem: 1022 | Lượt tải: 0
Exploring the packet delivery processLayer 1 provides the physical media and its encoding. Layer 2 devices provide an interface with the physical media. Layer 2 addresses are MAC addresses. The network layer provides connectivity and path selection between two host systems. Layer 3 addresses are IP addresses.
39 trang | Chia sẻ: nguyenlam99 | Ngày: 09/01/2019 | Lượt xem: 1144 | Lượt tải: 0
Understanding the host - To - host communications modelTransport layer of the TCP/IP stack Access to the network layer for applications Connection-oriented protocol Full-duplex mode operation Error checking Sequencing of data packets Acknowledgement of receipt Data-recovery features
30 trang | Chia sẻ: nguyenlam99 | Ngày: 09/01/2019 | Lượt xem: 1056 | Lượt tải: 0
Networ k+ guide to networks 5th edition - Chapter 7: Wans and remote connectivityVPNs (cont’d.) • PPTP (Point-to-Point Tunneling Protocol) – Microsoft • Encryption, authentication, access services – Dial directly into RRAS access server – Dial into ISP’s remote access server first • L2TP (Layer 2 Tunneling Protocol) – Cisco • Connects VPN using equipment mix • Connect two routers • Tunnel endpoints not on same packet-...
24 trang | Chia sẻ: nguyenlam99 | Ngày: 09/01/2019 | Lượt xem: 1094 | Lượt tải: 0
Networ k+ guide to networks 5th edition - Chapter 6: Network hardwareGateway – Combinations of networking hardware and software • Connecting two dissimilar networks – Connect two systems using different formatting, communications protocols, architecture – Repackages information – Reside on servers, microcomputers, connectivity devices, mainframes • Popular gateways – E-mail gateway, Internet gateway, LAN ga...
24 trang | Chia sẻ: nguyenlam99 | Ngày: 09/01/2019 | Lượt xem: 1079 | Lượt tải: 0
