Configuring and troubleshooting aclsStandard IPv4 ACLs allow you to filter based on source IP address. Extended ACLs allow you to filter based on source IP address, destination IP address, protocol, and port number. Named ACLs allow you to delete individual statements from an ACL. You can use the show access-lists and show ip interface commands to troubleshoot common ACL configura...
26 trang | Chia sẻ: nguyenlam99 | Ngày: 09/01/2019 | Lượt xem: 891 | Lượt tải: 0
Giao tiếp mạng S7 - 200Chúng ta thiết lập cấu hình địa chỉ IP và TSAPs cho Module Ethernet S7-200 CP243-1 với STEP 7-Micro/WIN. Project S7-200 cất giữ địa chỉ IP và TSAPs mà Module Ethernet S7-200 CP243-1 sẽ được dùng khi đã cố định đến mạng. sau khi chúng ta lựa chọn những thông số cho Module Ethernet S7-200 CP243-1. Chúng ta phải download S7-200 project trước những...
45 trang | Chia sẻ: nguyenlam99 | Ngày: 09/01/2019 | Lượt xem: 1663 | Lượt tải: 1
Introducing acl operationACLs can be used for IP packet filtering or to identify traffic to assign it special handling. ACLs perform top-down processing and can be configured for incoming or outgoing traffic. You can create an ACL using a named or numbered ACL. Named or numbered ACLs can be configured as standard or extended ACLs, which determines what they can filter. ...
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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.
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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
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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
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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...
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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.
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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: 886 | Lượt tải: 0
