For checking transmission links on Huawei Routers, it is good to know how to find out the optical power of 100GE modules or interfaces for troubleshooting and making sure the desired or optimal range is meet. Here are the sample commands for checking the TX/RX optical power. display interface 100GE <slot number> Sample Output: <Huawei-Router>display interface 100GE 5/0/0 100GE5/0/0 current state : UP (ifindex: 146) Line protocol current state : UP Link quality grade : GOOD Description: Connection to RouterA…
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These are common computer networking acronyms that you must know and you will encounter if you are in Information Technology (IT) or Telecommunication (Telco) industry especially if your are working as network and systems engineer. Acronyms Meaning ACL Access Control List AD Advertised Distance AS Autonomous System ASA Adaptive Security Appliance ARP Address Resolution Protocol BER Bit Error Rate BGP Border Gateway Protocol CDN Content Delivery Network CIDR Classless Inter-Domain Routing CIR Committed Information Rate CLI Command Line Interpreter CMTS…
Here are the steps on committing/saving and rollback configuration on Huawei Routers system-view commit or system-view commit label <String 1-256> Example: Change1: Change description on Ether-Trunk88 Change2: Enable ipv6 <Huawei>system-view [~Huawei]interface Eth-Trunk88 [*Huawei-Eth-Trunk88]description Connection to Router1 [*Huawei-Eth-Trunk88]commit label Eth88Desc description Eth88IntDesc Committing…..done. [~Huawei-Eth-Trunk88]ipv6 enable [~Huawei-Eth-Trunk88]commit label Eth88v6Enable Verification: display configuration commit list display configuration commit list verbose Example: [~Huawei-Eth-Trunk88]display configuration commit list ——————————————————————————– No. CommitId Label User TimeStamp ——————————————————————————– 1 1000000044 Eth88v6Enable admin 2023-07-06 22:34:42 2 1000000043 Eth88Desc admin 2023-07-06…
Border Gateway Protocol or BGP, is a gateway protocol that enables the Internet to exchange routing information between AS or Autonomous Systems. It is used by Large Enterprise and Service Providers. Here are the recommended Best Security Practices that need to be implemented on your Juniper Routers. Authentication need to be set for all peering using MD5 set protocols bgp group <group_name> authentication-key <MD5 key> There are few supported authentication that you can use aes-128-cmac-96 Cipher-based Message Authentication Code (AES128)…
Option1: If the current line cards installed support your PC/laptop’s 1GE UTP port, then you can install SFP-1000BaseT(SFP-T) transceiver directly to be used as the observing port. Fig.1 interface <interface name> port-mirroring inbound port-mirroring outbound port-mirroring to observe-index 1<1-255> interface <interface name> port-observing observe-index <1-255> Sample Configuration: Objective: To further do analysis on all traffic going to the Web server by port mirroring the interface going to the server. Port to mirror: Gi2/0/0 Port to observe:Gi1/0/0 <HW-Router>sys Enter system…
PAT or Port Address Translation or also known as NAT Overloading is like a modified form of dynamic NAT where multiple inside local addresses are translated to single inside global IP address. It is the most popular form of NAT as the setup is the same what we use on our home connectivity as your Internet Service Provider (ISP) usually will only provide you 1 public IP to communicate with their internet router. Just remember the word many-to-one mapping. Objective:…
Here are the basic configuration on implementing different types of Network Address Translation (NAT) on Cisco Routers. Fig.1 Static NAT (1-to-1 Translation) (Objective: to translate PC-1 private IP of 192.168.0.2 to public IP 200.200.200.3) Configuration: Router1 Main Static NAT configuration: ip nat inside source static <Inside local IP> <Inside global IP> Sample Config: Router1(config)# ip nat inside source static 192.168.0.2 200.200.200.3 interface FastEthernet0/0 description Connection to PC-1 ip address 192.168.0.1 255.255.255.0 ip nat inside interface FastEthernet0/1 description Connection to Router2…
Network Address Translation or NAT, is a process of converting or translating a set of IP addresses to another set of IP addresses. Benefits of NAT: Solve IPv4 exhaustion issue by conserving IP address space. Cost effective as can connect multiple devices to Internet without to purchase multiple public IP Enhance security by hiding the internal devices on a private network behind single public IP Simplifies network reconfiguration as internal IP are hidden from external networks Easy to manage and…
Here is a simple tutorial on tracing access users on Huawei Router. There are few ways to trace access-user based on the given information and most common are circuit-id, ip-address,ipv6-address and mac-address. [~Huawei]trace access-user object 1 ? access-mode The access mode calling-number The Calling Number ce-vlan The CE VLAN ID circuit-id User’s circuit-id interface The interface ip-address The IP address ipv6-address IPv6 address mac-address The MAC address pe-vlan The PE VLAN ID remote-id User’s remote-id tunnel-id User Tunnel ID user-name…
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