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Mobile devices behind wireless bridge not getting IP address

I'm trying to get a wireless link set up to a building about 1/2 mile away from the rest of my network. I'm using a pair of Engenius EOC2611P radios, and as far as I can tell everything is set up correctly. While in the remote building, my laptop…
Joel Coehoorn
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The Difference between session and flow in networks

What is the difference between session and flow in networks? In fact, I always visualize flow as a set of packets having the same source and destination. What confuses me is session. So I'd like to know the difference. Thank you
Katherine
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Why is there reserved bit or byte in network protocols?

In different wire protocols there is often a set of reserved bits that must be set to 0 or else the connection is ended. What is the purpose of such reserved bits? When was the last time these were actually used in 'future'? If other machine is…
Muhammad Hasan Khan
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Difference between gateway, router, switches and bridge

I am going through a course of networking and want to know the difference between the mentioned devices. I have heard that the switches: Establish a temporary connection between the devices connected to it and wanting to communicate. If this is the…
Pranav
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WLC geographical redundancy

There are two "central" locations each one having one satellite or spoke site. Let's have: - zone A and its spoke_zone A1 - zone E and its spoke_zone E1. Both region A and region E have a similar deployment scenarios: - 1 x 5508 WLC - several LWAPs…
laf
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3 answers

Circuit and Packet Switching

I'm struggling to understand 1 or 2 things about packet and circuit switching. In circuit switching, resources are not shared and a it's guaranteed full capacity to the call right? They are "reserved" for a certain call/circuit. But in TDM aren't…
tsm
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Wireless (Ruckus) and Dynamic VLAN Assignment via Microsoft NPS

Our current 802.11 setup has a large number of SSIDs to segregate traffic by subnet. This isn't ideal, and I've been attempting to consolidate to a single SSID but use dynamic VLANs instead. This is on a Ruckus Zonedirector 3000 and Microsoft NPS as…
Network Canuck
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Does a router have multiple nics?

I am currently doing an internship and I hear the IT Director referring to a router port as a NIC. I can't remember exactly what he said. Also, in my Networking+ book it states that each dynamic routing protocols are tied to individual NICs, not the…
Dalton55
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Solution for network inventory?

I am trying to figure out a way to keep track of network equipment, including chassis and service modules/line cards. So when I need to find something, I know where I can find it. 1) telnet access available 2) IOS, IOS-XE, IOS-XR, NX-OS, ASA I am…
sdaffa23fdsf
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TCP Flow-control questions that drives me mad

This is a capture of a TCP session when I was downloading the 10Mb file from an FTP server. The server has an ICW of 10x MSS, so this means that the server can initially send 10 segments without receiving an ACK from the client. Being said that,…
mohmkamal
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How ARP works in case of Virtual machine?

As far as my understading goes MAC address is used to recognize a computer node in a LAN where as internet communications happen over IPv4 address. When a request comes from the internet to the gateway the packet has the destination IP address. Now…
Aniket Thakur
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6
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4 answers

Switch Lookup Table

I was just reading a book called HeadFirst Networking and I'm a bit confused about something. I am attaching an image from the book. The page says that the direction of the frames as maintained in the switch lookup table should be a mapping between…
user1369975
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OSPF and routing table

I have several questions on OSPF. 1 OSPF is a link-state prototol, so routers inside an AS only broadcast their link states to all the other routers. I'm wondering if a router doesn't tell other routers its routing table, how can other routers know…
misteryes
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why does an interface card in cisco 1921 router not restart after cable disconnect?

I've got a cisco 1921 in a lab setting where we've added an extra interface (EHWIC-1GE-SFP-CU) and as long as a network cable is connected it works fine. However if the network cable is disconnected and then reconnected the inteface doesn't start up…
Johannes Nordh
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What is the correct way to determine SFP+ Direct Attach cable compatibility between switches and NICs?

I'm contemplating a 10 Gigabit link between an Intel x520 NIC and a Cisco SG500X switch. These two would be within 5m of one another, so using one of the Cisco SFP+ passive Direct Attach cables like the SFP-H10GB-CUxM seems an obvious choice. I'm…
alx9r
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