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More than two BGP neighbours on Juniper, and routing based on “Filter-Based Forwarding”, to control next-hop selection

Let’s take a look at the following situation shown on Fig. 1. We have two BGP links with diffrent ISP – ISP1 ( primary and backup link) and ISP2, so we have actually three BGP links with full Internet routing table. If the three BGP links are active at the same time, the path selection of BGP will depend on the speed of the link, latency of link, IP address of the neighbour ( the higher or lower is IP ). Fi ...

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Activate Juniper 7Mi interface (PIC)

First if you’re not familiar with slots and interface naming, take a look at picture To view available interfaces (PIC) use this command: [email protected]_7mi> show chassis fpc pic-status 0 Slot 0 Online E-FPC PIC 0 Online 1x G/E SFP, 1000 BASE PIC 1 Online 1x G/E SFP, 1000 BASE PIC 2 Offline PIC 2 is offline, to activate this interface: [email protected]_7mi>request chassis pic pic-slot 2 online fpc-slot 0 fp ...

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Juniper EX4500 tagged and access port

You can use a port on EX4500 as access ( using native vlan ) and trunk. For our example on a linux box we have a tagged traffic (vlan 100) and untagged traffic ( vlan 10 ): EX4500 configuration: [email protected]# set interfaces ge-0/0/8 unit 0 family ethernet-switching port-mode tagged-access [email protected]# set interfaces ge-0/0/8 unit 0 family ethernet-switching native-vlan-id 10 [email protected]# set interfaces ge-0/0/8 ...

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Cisco – rewrite DSCP (ToS) values

Rewriting DSCP (ToS) values is tested on Cisco switch 3750: Ports Model SW Version SW Image ------ ------ ----------------- ------------ 52 WS-C3750G-48TS 12.2(25)SEE4 C3750-ADVIPSERVICESK By default QoS configuration is disabled: sw3750#sh mls qos QoS is disabled QoS ip packet dscp rewrite is enabled So we need to enable QoS: sw3750#conf t sw3750(config)#mls qos sw3750(config)#end sw3750#sh mls qos QoS is ...

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ToS to DSCP mapping

Table of ToS to DSCP mapping (conversion). Related articles: Configuration of Cisco switch to rewrite ToS (DSCP)   ToS dec ToS hex ToS bin ToS Prec. (bin) ToS Prec. (dec) ToS Delay Flag ToS Throgh- put Flag ToS Relia- bility FLag DSCP bin DSCP hex DSCP dec DSCP Class 0 0Ă—00 00000000 000 0 0 0 0 000000 0Ă—00 0 none 32 0Ă—20 00100000 001 1 0 0 0 001000 0Ă—08 8 cs1 40 0Ă—28 00101000 001 1 0 1 0 001010 0x0A 10 ...

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cisco backup configuration

One simple method to backup Cisco’s configuration using SNMP and PERL. Download manually  from search.cpan.org  PERL library Cisco::CopyConfig  . Another way of installing: perl -MCPAN -e 'install Cisco::CopyConfig' Cisco::CopyConfig provides methods for manipulating the running-config of devices running IOS via SNMP directed TFTP. This module is essentially a wrapper for Net::SNMP and the CISCO-CONFIG-COPY ...

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Cisco ME3400 UNI/NNI Port Types

Cisco ME 3400 series switches are designed to meet the needs of Metro service providers. Introduce brand new concept and features to make the product easier to manage, deploy, and troubleshoot. One of new features is the new concept of UNI/NNI Port Types. UNI – User Network Interface NNI – Network Node Interface Based on the port type, certain features/behaviors are enabled or disabled to ease configuration ...

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Cisco ME-3400G multicast routing

First we need to allow multicast routing: ip multicast-routing distributed In our example we have two vlans: VLAN 3000 – clients that will receive multicast traffic VLAN 4000 – in this VLAN are sources of multicast traffic enter the following commands: ip igmp snooping querier ip igmp snooping vlan 3000 mrouter learn cgmp ip igmp snooping vlan 4000 mrouter learn cgmp According Cisco’s official documentation ...

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cisco 1800 configure tagged vlan on WAN interface

A brief tutorial how to configure dot.1q ( tagged vlan ) Layer3 interface on Cisco 1800 series. ( on WAN interface ). First will create vlan 777 in vlan database cisco1800#vlan database cisco1800(vlan)vlan 777 VLAN 777 added: Name: VLAN0777 cisco1800(vlan)# cisco1800(vlan)#vlan 777 name dot1q_vlan_on_WAN_interface VLAN 777 modified: Name: dot1q_vlan_on_WAN_interface Now verify vlan: cisco1800#show vlan-swit ...

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Huawei S2300/3300 default BootROM password

Before entering the BootROM menu, you need to restart the S2300. During the restart of the S2300, the following information is displayed: Press Ctrl+B to enter BOOTROM menu... 1 Press Ctrl+B within one second, and then enter the password. The default password is huawei orwww.huawei.com . Then the advanced BootROM menu is displayed. The following information is displayed: BOOTROM MENU 1. Boot with default mo ...

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