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1500 questions
8
votes
2 answers
How can I capture traffic on a Brocade XMR, MLX, CER or CES?
How can I perform a packet analysis on traffic flowing through a Brocade XMR, MLX, CER or CES without having to install a specific software on any of the remote endpoints ?
Benjamin A.
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8
votes
1 answer
Cisco callmanager SIP features
I am a programmer working in a software for the sales dept. I would like to know if a feature I want to implement is possible or not.
The user has an application where he can see information about a customer, including the phone number. My question…
Cornwell
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8
votes
6 answers
What is the name of these broadband street cabinet connectors, and are they secure?
Can anyone help enlighten me, do these connectors have a formal name/standard? These are found in a street side ISP broadband cabinet for residential customers in the UK. Would I be correct in thinking that each of these cables goes direct to a…
Jamie
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8
votes
1 answer
Cannot Load Internal Website over MPLS
We have an MPLS set up between two subnets. Everything (that is, I have RDP both directions as well as file-sharing) seems to be working correctly except for two things, which may be related.
Windows computers do not populate the "Network" with…
bgmCoder
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8
votes
1 answer
will ping work if there are 500 routers between pc1 and pc2?
As the ttl is 255 maximum for ipv4 on cisco routers, will ping work if there are 500 routers between pc1 and pc2?
ban_ra
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8
votes
2 answers
How is the IP prefix passed to the router?
First some background information on what I already know:
An IPv4 address is a 32 bit address that identifies a node in a network. An IP address will have an IP prefix which determines the "Network" part of the IP address and the rest will determine…
Koray Tugay
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8
votes
2 answers
Is the first address in an IPv6 subnet assignable?
I am working in a lab and have configured a series of /125 subnets between routers. Lets ignore the best practice for this discussion of using /64 for everything.
When I assign fd00:f9a8:ffff::257 to an interface, there is no issue with the…
ACiD GRiM
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8
votes
1 answer
Dropped data packet on satellite connection
We have several embedded pcs on farms in the UK and US. Among other connections these talk to our server sending a small packet of data (100 - 600 bytes) every 20 seconds.
Over DSL this is fine. Over satellite connections, we lose most of the…
Johan
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8
votes
2 answers
What are private MIBs and how they are different from RFC based MIBs
I understand the basic use of SNMP where you manage and monitor switch, routers,etc. features using IP network. I also understand there are MIBs for SNMP based on RFCs like 2981, 3289, 3376, etc. However, recently I heard from couple of customers…
modest
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8
votes
3 answers
Active / Active BGP with Default routes
I've just lodged a request with upstream to clarify some specifics of their recommended BGP configuration. Currently, I will be dual-homing with my upstream via PI addresses. Advertising via BGP with my own AS, and have requested they pass me a…
Geekman
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8
votes
2 answers
Nexus 2000 pinning best practice
As many known the Nexus 2000 series is a switch which allows a distributed fabric in DC networks. Pinning Nexus 2000 is quite a breeze. I was looking to seek discussion and a general consensus on what others do.
A simple N2K pin is as such.
fex…
Pandom
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8
votes
1 answer
Aggregate Family Rate Limits on Juniper EX
Trying to figure out how to perform rate limits on Juniper EX for both inet and inet6 families. Ideally I'd like a packet rate limiter to be applied before the ip type is ever looked at. Basically, I don't care whether the traffic is V6, V4, or…
Chip
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8
votes
6 answers
Could IPv6 make NAT / port numbers redundant?
From what I can tell, each process could get its own IP address, with loads of IP's to spare.
What would the drawbacks be?
Essentially, your host would become a router and each process is a host (in the current system).
Tobiq
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8
votes
2 answers
OSPF increase bandwidth with load-balancing
This is my current setup where i have 40Gbps links between all 4 switches running OSPF using L3 links between them but now i want to double my bandwidth between switches so i am planning to add (dotted links) L3 links and let OSPF load-balance…
Satish
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8
votes
3 answers
Why can a packet sniffer in an Ethernet LAN obtain all packets sent over the LAN?
Why can a packet sniffer in an Ethernet LAN obtain all packets sent over the LAN?
In a limited broadcast environment, such as in many Ethernet LANs, a packet sniffer can obtain all packets sent over the LAN.
We know if there is a Wi-Fi network, we…
244boy
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