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1500 questions
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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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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
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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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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
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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
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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
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5 answers

Connecting two different Cisco Switches using Fibre

I have two Cisco Catalyst 2960-24TC-L switches and would like to connect them using fibre over a distance of 200Meters. According to cisco, the switches has two SFP ports, which I can clearly see on them but my issue is I do not know where or how to…
Laredo
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8
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2 answers

How are the LERs determined in an MPLS LSP using LDP

Preface; In the below topology R1 and R6 are PEs, all others are P routers, all routers are running c7200-jk9s-mz.124-13b.bin. At this point IGP is fully converged (OSPF with all interfaces in area 0 for simplicity) and MPLS is enabled on all…
jwbensley
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8
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2 answers

Splitting two Internet connections between two VLANs

My current setup is as follows: Cisco 881 router (only 1 WAN interface) that has a pair of T1's coming in on the WAN interface, this currently provides internet access to two VLANs, 10 and 20. What is changing: We are adding another pair of T1's,…
David Rediger
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3 answers

Broken PPPoE Config

We have been struggling with this for a few weeks now. CISCO 3825 (15.1 IOS) with properly established PPPoE (ie can ping the net from inside the cli). The problem we are having is that the client's cannot ping the outside world. I have the client…
Nick Cameo
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8
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3 answers

10Gig over single strand fiber

We have several BX SFPs in my network and I love them. We're limited on the amount of fiber we can get between buildings (each pair costs $250/month) so the mismatched laser solution gives us redundancy and extra bandwidth all at once. For the…
Avery Abbott
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1 answer

Dealing with IP Spoofing

Border routers, which are routers that span two or more sub networks, can be configured to block packets from outside their administrative domain that have source addresses from inside that domain. Source: Introduction to computer…
Henok Tesfaye
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8
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2 answers

Is the shaping-rate on a CoS scheduler per-port or aggregate on a Juniper EX?

I'm using a Juniper EX2200 as demarc/CPE device for a customer that has multiple handoff ports on the one switch. I need to make sure that, across all their ports, they don't use more bandwidth than they ordered. I've read the Juniper doc Defining…
jda
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1 answer

SubInterface on a router

How many sub interfaces can be created on a cisco router to route between vlans on a connected switch?
Benk4c
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8
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1 answer

What is VLAN Hopping

I am starting on my journey into the world of Networking and have come across a term called VLAN hopping. The sentence I read was that if the Native VLAN on two switches connected to each other via their trunk interfaces had different Native VLANs,…
Tismyselfsure
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