Resetting Cisco ASR9000 Network Processor(NP) NP or network processor is the component on ASR9000 line cards that handle the feature processing of packets as they go through the system. Sample LC: ASR9K MOD160 RP/0/RSP0/CPU0:ASR9000# show controller np ports all location 0/1/cpu0 Node: 0/0/CPU0: —————————————————————- NP Bridge Fia Ports — —— — ————————————————— 0 — 0 TenGigE0/0/0/0 – TenGigE0/0/0/1, TenGigE0/0/0/4 – TenGigE0/0/0/5 NP1 is down. 2 — 2 TenGigE0/0/1/0 – TenGigE0/0/1/1, TenGigE0/0/1/4 – TenGigE0/0/1/5 3 — 3 TenGigE0/0/1/2 – TenGigE0/0/1/3,…
Category: <span>Cisco</span>
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>…
Why is considered hidden? Because you won’t see it in the command in Cisco Routers Command Line Interface (CLI). Sample output: RP/0/RSP1/CPU0:CORE1#ser? service RP/0/RSP1/CPU0:CORE1#service ? redundancy Service Director related commands. Then what it is? service unsupported-transceiver Configuration: Cisco IOS-XE Router1(config)#service unsupported-transceiver Warning: When Cisco determines that a fault or defect can be traced to the use of third-party transceivers installed by a customer or reseller, then, at Cisco’s discretion, Cisco may withhold support under warranty or a Cisco support…
Objective: The PBR policy will be removed facing Uplink-Router once it detected that the server is unreachable. Policy-based routing (PBR) is a method used to make routing decisions based on policies. Scenario: Server1 providing web caching to customers for faster web page loading. Since there is route-map in place to route their http/https traffic to the next hop which is Server1, what if this server suddenly goes down?, the expected behaviour is the customer won’t be able to access websites.…
Objective: To configure port-channel and associate it to vlan. Servers will use Cisco-NXOS as their gateway and uplink to Internet. Server-switch have Layer 2 (access mode) connectivity to Cisco-NXOS router. (see Fig.1) Fig.1 1. Configure the Vlan (interface vlan will be the server’s gateway) Cisco-NXOS# configure vlan 8 name Server-Farm interface Vlan8 description Server Farm Vlan no shutdown ip address 192.168.8.1/24 2. Configure port-channel interface port-channel10 description Port-channel to Server-Switch switchport access vlan 8 3. Configure…
Objective: To separate management traffic from data/customer traffic in your Cisco XR routers. Preferably, Data and Management are into 2 separate network domains. Pre-requisite: UTP cables (for each RSP management port in case for switchover) are connected to a network switch to access the OOB management gateway * * Management IP Configuration* * 1. Configure the vrf for management vrf management description VRF for Out-of-Band address-family ipv4 unicast 2. Set the physical IP address on each RSP management port. There are total of…
Cisco IOS e.g. Vlan10 = interface management vlan NTP Server = 192.168.10.100 1. Configure ACL to deny NTP requests and query conf t access-list 100 remark to block NTP requests and query access-list 100 deny any 2. Configure ACL to allow only the NTP servers to peer or synch with access-list 200 remark NTP to peer access-list 200 permit 192.168.10.100 access-list 200 deny any 3. Configure NTP conf t ntp source Vlan10 ntp access-group peer 200 ntp access-group serve 100 ntp access-group…
Here is sample commands in configuring SNMPv2 and SNMPv3 in Cisco IOS-XR devices. It also detailed on how to configure SNMP traps for your Network Monitoring System. SNMPv2c community: snmpcomm123 management IP address: 192.168.10.100 SNMP Polling Server: 192.168.20.199 SNMP Trap Server: 192.168.20.200 SNMPv2c Polling Configuration: ipv4 access-list SNMP-ALLOW 10 permit ipv4 host 192.168.20.199 any snmp-server contact DC-ADMIN snmp-server location Datacentre snmp-server trap-source Loopback0 snmp-server community snmpcomm123 RO SystemOwner IPv4 SNMP-ALLOW SNMPv2c Traps Configuration: configure snmp-server traps snmp-server host 192.168.20.200 traps snmpcomm123 Verify: /usr/bin/snmpwalk -M /usr/local/snmp/mibs -v2c…
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