Category Archives: Networking
Distributed Core Network Architecture
There is no doubt you have probably heard by now the importance of supporting ‘east-west’ traffic flow in large data center networks. So why is this and what does it mean? And when Gartner claims that 80 percent of data … Continue reading
Posted in Dell Force10, Force10 Networks, Hadoop, Network Architecture, Networking, Servers, Technology, Virtualization and Cloud Computing
Tagged 'east-west' traffic flow, 10 GbE, 10 gig, 3-Tier, 3-Tier Network Architecture, 40 GbE, 40 gig, Data Center, Dell, Dell Force10, Dell Force10 S4810, Dell Force10 Z9000, Dell S4810, Dell Z9000, distributed cloud computing, distributed cloud computing platform, distributed cloud computing platforms, distributed core architecture, Distributed Core Network Architecture, east-west, east-west traffic, Facebook, Force10, Force10 Networks, Force10 Networks S4810, Force10 Networks Z9000, Force10 S4810, Force10 Z9000, Hadoop, server-to-server, server-to-server traffic, server-to-server traffic flow, Spanning Tree Protocol, spine and leaf, spine and leaf architecture, spine and leaf network, STP, Traditional 3-Tier Network Architecture, Z9000
3 Comments
XenServer, Hyper-V, and ESXi – Architecture, API, and Coding
Below is a link to the slide deck for a presentation I gave to some friends/colleagues for a Berkeley Virtualization and Cloud Computing certification course I took in early 2012. For my final project I did a XenServer, Hyper-V, and … Continue reading
Posted in Citrix, Java, Microsoft, Networking, Personal Presentations, PowerShell, Programming Languages, Python, Tech Events, Technology, Virtualization and Cloud Computing, VMware
Tagged ESXi, humair, Humair Ahmed, Java, networking, PowerShell, Python, Tkinter, VI API, virtualization, vmware, vSphere, Xen, XenServer, XML-RPC
Leave a comment
Multi-Area OSPF in a Mixed Cisco and Dell Force10 Environment
In this lab I use one Cisco 2621XM [IOS 12.4(2)T], one Cisco 2621 [IOS 12.3(18)], one Cisco 3660 [IOS 12.1(1)T], one Cisco 3640 [IOS 12.1(2)T], one Cisco 3550-24PWR-SMI [IOS 12.2(44)SE6], one Dell Force10 S60 [FTOS 8.3.3.7], and one Dell Force10 … Continue reading
Posted in Cisco, Dell Force10, Force10 Networks, Labs, Networking, Protocols, Technology
Tagged 2621, 2621XM, 3550-24PWR-SMI, 3640, 3660, ABR, Area Border Router, Area Border Routers, Cisco, Cisco 2621, Cisco 2621XM, Cisco 3550-24PWR-SMI, Cisco 3640, Cisco 3660, Dell, Dell Force10, Dell Force10 S50N, Dell Force10 S60, Force10, Force10 Networks, Force10 S50N, Force10 S60, multiarea ospf, Open Shortest Path First, OSPF, ospf neighbor, OSPF Neighbors, S50N, S60, Type 3 LSAs
Leave a comment
Blocking Hackers From Accessing Your Switch via Telnet/SSH
It’s amazing how much rattling at the doors and attempted intrusions companies become accustomed to seeing on their networks. Here I show a simple way to block telnet/SSH access to your switch. First, you should never use telnet to manage … Continue reading
Posted in Dell Force10, Force10 Networks, Hacks, Labs, Network Security, Networking, Technology
Tagged access list, access lists, access-llists, block ssh, block telnet, block VTY access, Dell, Dell Force10, extended access list, extended access-lists, Force10 Networks, FTOS, hack, hacker, named access list, named access-lists, port 22, port 23, S0N, SSH, tcp, telnet, VTY, VTY access, VTY line, VTY lines
Leave a comment
Gratuitous ARP and Basics of Connecting a Cisco IOS Switch with a Cisco CatOS Switch
Some of you may have an old Cisco Catalyst switch laying around that you may want to put to use. CatOS is the old Cisco operating system for Catalyst switches that predates IOS; it can still be found on some … Continue reading
Posted in Cisco, Labs, Networking, Protocols, Technology
Tagged 1000Base-SX, 1000Base-SX GBI, CAM, Catalyst 3548-XL, Catalyst 3550, Catalyst 4003, Catalyst C4000, Catalyst C4003, CatOS, Cisco, Cisco 1000Base-SX, Cisco 1000Base-SX GBIC, Cisco Catalyst, Cisco Catalyst 3548-XL, Cisco Catalyst 3550, Cisco Catalyst 4000, Cisco Catalyst 4003, Cisco Catalyst C4003, Cisco CatOS, Cisco GBIC, Cisco IOS, Cisco WS-X4012, Cisco WS-X4232-GB-RJ, Cisco WS-X4232-L3, delete configuration, Dell, Dell EqualLogic, Dell EqualLogic storage, EqualLogic, erase configuration, GBIC, Gratuitous ARP, ios, IXIA, MAC address, MAC address table, reset configuration, Supervisor Engine, Supervisor Engine 1, Supervisor Engine 2, Supervisor Engine I, Supervisor Engine II, Windows PC, wireshark, WS-C3548-XL-EN, WS-X4012, WS-X4232-GB-RJ, WS-X4232-L3
1 Comment
Using Dell EqualLogic iSCSI Arrays for Remote Storage
Dell EqualLogic storage can provide an easy and cost effective solution for adding remote storage to your virtualized environment. The PS Series Storage arrays can be a great solution as you can easily expand storage by combining multiple PS Series … Continue reading
Posted in Dell EqualLogic, Dell Force10, iSCSI, Networking, Storage, Technology
Tagged Dell EqualLogic, Dell EqualLogic P6100XS, Dell EqualLogic PS Series, Dell EqualLogic storage, EqualLogic, EqualLogic array, EqualLogic P6100XS, EqualLogic PS Series, iSCSI, iSCSI storage, P6100XS, RAID 6, RAID-6 Accelerated, remote storage, SAN, SAS, serial attached SCSI, solid state disk, solid state disks, SSD, SSDs, storage, storage area network
1 Comment
Advanced Private VLAN Configuration on Dell Force10 Switches
In a prior lab, “Dell Force10 Z9000 – Creating Additional Layer 2 Isolation via Private VLANs“, I demonstrated some basics in regards to private VLANs. In this lab, I plan to go a little further and demonstrate how hosts in … Continue reading
Posted in Dell Force10, Force10 Networks, Labs, Networking
Tagged Dell, Dell Force10, Dell Force10 S50V, Dell Force10 S60, Dell Force10 Z9000, Dell S50V, Dell Z9000, Force10, Force10 S50V, Force10 S60, Force10 Z9000, FTOS, private VLAN, private VLANs, private-vlan host, private-vlan trunk, PVLAN, PVLANs, S50V, S60, Z9000
Leave a comment
Multi-Area OSPF – Redundancy, Route Summarization, and LSA Filtering
In this lab, all routers except for R4 and R5 are Cisco 3725 routers [IOS 12.4(15)T10]. Routers R4 and R5 are Cisco 7200 routers [IOS 12.4(24)T]. Below is the network diagram for this lab.
Posted in Cisco, Labs, Networking, Protocols, Technology
Tagged ABR, Area Border Router, Cisco, Cisco 3725, Cisco 3725 router, Cisco 7200, Cisco 7200 router, Multi-Area OSPF, networking, Open Shortest Path First, OSPF, OSPF ABR, OSPF Area Border Router, OSPF redundancy, OSPF summary route, redundancy, summary route
1 Comment
Twitter
LinkedIn
Youtube
RSS