Assuming you have this type of card on your Cisco ASR9000 Series Router and inserted on Slot 0 A9K-MOD80-SE –> 80G Modular Linecard, Service Edge Optimized A9K-MPA-4X10GE –> ASR 9000 4-port 10GE Modular Port Adapter Here’s the following commands that can be used: show pfm location all show asic-errors all location 0/0/cpu0 show controllers fabric fia stats location 0/0/cpu0 show controllers np counters all location 0/0/cpu0 show controllers fabric fia stats location 0/0/cpu0 show controllers fabric crossbar statistics instance 0…
Tag: <span>Cisco</span>
We are going to configure VRRP between the 2 pairs of routers and the expected behavior, setup as per below: Setup: 1. Routers PE1,PE2,FW1 and FW2 are connected to the same Layer 2 Switch and belongs to the same VLAN. 2. L2-Switch will just function as Layer 2 switch (subnet 192.168.2.240/29) 3. VRRP is configured between PE1 & PE2 3. VRRP is configured between FW1 & FW2 Fig.1 IP & VRRP Configuration: L2-SWITCH L2-SWITCH#conf t a. Setup access VLAN…
In routing world, Administrative Distance refers to the reliability of the routing protocol. It is equivalent to Juniper’s Route Preference and Huawei’s Preference. It is important to consider these values as in the scenario that there are multiple routes to a destination (with same prefix length), the route (learned via the routing protocol) with the lowest value is preferred. Table below will show the values for respective platform. Routing Protocol Cisco(AD) Juniper (RP) Huawei(P) Connected Interface 0 0 0…
Here’s the Cisco IOS-XR commands vs Huawei OS commands Cisco IOS-XR Huawei BASIC show display | include | include exit quit end return ..formal | configure system-view shutdown shutdown no shutdown undo shutdown no undo clear reset show running-config display current-configuration show version display version show tech-support display diagnostic-information show configuration (after change) display configuration candidate clear counters <interface> reset counters <int> clear line <line><line number> terminal length <num> screen-length <0-512>…
1.Remote access should be via SSH and telnet is disabled IOS-XR: no telnet ipv4 server Nexus OS: no feature telnet feature ssh feature tacacs+ 2. SSH should be version 2 or higher. Do not run v1. IOS-XR: ssh server v2 ssh server vrf management Nexus OS: ssh server v2 ssh server vrf management ssh timeout 60 3. Configure SSH logging IOS-XR: ssh server logging 4. Configure Login Banner IOS-XR: banner login ^C ************************************************************************* UNAUTHORIZED ACCESS TO…
Here’s the sample IS-IS dynamic routing configuration in different Cisco platforms. Fig.1 IOS-XR Configure Loopback interface Loopback0 ipv4 address 172.16.2.1 255.255.255.255 ipv6 address fdfe:abcd:ef12:0:172:16:2:1/128 ipv6 enable Configure P2P IP interface Gi0/0/0/0 description Connection to IOS Fa0/0 ipv4 address 172.17.0.1 255.255.255.252 ipv4 verify unicast source reachable-via any ipv4 unreachables disable ipv6 nd suppress-ra ipv6 verify unicast source reachable-via any ipv6 address fdfe:ab12:cd34:a00:1::/127 ipv6 enable ipv6 unreachables disable load-interval 30 dampening interface Gi0/0/0/1 description Connection to NX-OS E1/1 ipv4 address 172.18.0.1…
100G transceivers have been around for few years already and it is getting affordable since 2016 I guess, and it is now practical to shift to 100G instead of burning N x 10GEs. To see more info about 100G transmission principles, I find this link very informative -> https://community.fs.com/blog/understand-100g-transceivers-transmission-principles.html Here are sample 100G transceivers we deployed in our datacenters, it really depends on what type of vendor or hardware you have, but the most popular now is the QSFPs Juniper QSFP-100GBASE-LR4…
As per Cisco website definition: Control Plane Policing (CoPP) is a Cisco IOS-wide feature designed to allow users to manage the flow of traffic handled by the route processor of their network devices. CoPP is designed to prevent unnecessary traffic from overwhelming the route processor that, if left unabated, could affect system performance. Here’s a sample configuration in applying Control Plane Policing (CoPP) in Cisco IOS Routers Step1: Create necessary ACLs a. Important services,e.g.NTP,SSH,SNMP ip access-list extended SSH-ACL permit…
Here’s the sample configuration of Netflow in Cisco running IOS and Nexus-OS. Cisco IOS-XR: The NetFlow use these 3 maps to configure Step1. EXPORTER MAP – configure parameters like export destination IP, udp port (only supported transport protocol), source interface IPv4: flow exporter-map NETFLOW-EXPORTER-MAP version v9 transport udp 9991 source Loopback0 destination 192.168.30.100 IPv6: flow exporter-map IPv6-NETFLOW-EXPORTER-MAP version v9 transport udp 9991 source Loopback0 destination 192.168.30.100 Note: destination udp port can be from <1024-65535>…
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