1. The QoS service offered by the ISP allows for control of how traffic is prioritised and bandwidth is reserved, with three queues available (multimedia – VoIP, critical data and normal data). Packets must be remarked with the following values to be classified on a each queue:
Continue reading “Traffic Classification and Marking on HP Switches”
In this article we will configure the HP7510 switch to limit the bandwidth for two specific applications. The switch is placed in the company central building and is connected to the WAN router that provides access to offices in different remote locations. Continue reading “Limiting Application Bandwidth on HP Switches”
In this article I will show how to mark IP packets to prioritize multimedia and critical applications following a QoS policy that will be later enforced inside the ISP cloud.
1. The QoS service offered by the ISP allows for control of how traffic is prioritized and bandwidth is reserved, with three queues available as shown in the figure below.
Continue reading “Traffic Classification and Marking on Cisco IOS”
In this article we will configure a Cisco IOS Router to limit the bandwidth usage of an user that is watching video of a security camera. To that goal, we will use a traffic policer, but will also show how to reach the same objective using traffic shapping.
Continue reading “Limiting Bandwidth with Cisco IOS”
A few show commands to verify the performance of routers with JUNOS: Continue reading “Verifying Performance on Juniper”
- This command will start capturing packets on the given interface and save the capture in the file capture.pcap.
monitor traffic interface ge-1/0/1.0 extensive matching "dst host 18.104.22.168" no-resolve print-ascii write-file capture.pcap
Continue reading “Capturing Packets at a Juniper Router”
This article shows 2 ways to control the path of packets leaving an autonomous system:
- Changing the exit route to a given prefix
- Changing the exit route to a given autonomous system
The commands below are related to the following diagram: Continue reading “BGP Path Control on Junos”
Power over Ethernet (PoE) enables a power sourcing equipment (PSE) to supply power to powered devices (PDs).
To display the mapping between a PSE ID and the LPU (Line Processing Unit – “Slot”) of an interface card, execute the display poe device command.
Continue reading “PoE on HP Switches”
1. Log into Nexus and copy the .bin files to the bootflash:
NEXUS7000# copy tftp://10.9.62.51/n7000-s1-dk22.214.171.124a.bin bootflash:
NEXUS7000# copy tftp://10.9.62.51/n7000-s1-kickstart.6.2.8a.bin bootflash:
Continue reading “Firmware Upgrade Nexus 7000”