Robert
  • Member for 8 years, 7 months
  • Last seen more than 3 years ago
Juniper EX Flooding on STP Topology Change
6 votes

TCNs are only generated from non-edge ports when they receive a BPDU. Verify that your access ports are configured as edge ports under your spanning-tree config. set protocols rstp interface ge-0/0/...

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configuring 3750x to handle 2nd ISP, for a separate customer/not load balancing
Accepted answer
5 votes

If you put their L3 interfaces in a separate VRF you would not need ACLs. No need to even mix the routing tables. However you would need to be running IP Services IOS.

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Why does the MTU need to match on interior link state routing protocols like EIGRP and OSPF?
5 votes

According to the OSPF RFC 2328 (10.6): If the Interface MTU field in the Database Description packet indicates an IP datagram size that is larger than the router can accept on the receiving ...

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CIDR: When can IP addresses not be aggregated?
Accepted answer
3 votes

If the aggregate network is not contiguously used then aggregating the subnets would hijack and blackhole some traffic. For example: 10.1.0.0/24 - Site A 10.1.1.0/24 - Site A 10.1.2.0/24 - Site B 10....

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Cisco ASA RRI and OSPF redistribution
Accepted answer
3 votes

At the risk of another down-voted answer because I can't comment I'm going to propose a possible solution. The Problem: The forwarding address of the Type5 LSA is non-zero. According to the Cisco ...

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BGP - Peering points vs BGP speakers?
3 votes

Peering Points are just points where two autonmous networks connect to each other, like at an Internet Exchange, but not limited to only public internet. BGP speakers are the actual devices that can ...

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EIGRP- Core not passing Loopback information of connected Routers
Accepted answer
2 votes

Remove the eigrp stub connected summary from the Core1 router. An EIGRP stub router should not be a router that carries transit traffic (from R1 to R2). The options you specify on the stub command '...

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Why are both flow control and congestion control procedures required in a TCP connection?
2 votes

Flow control is used to help prevent overloading the receiver with too much data. Flow control uses a sliding window in which the receiver states how much they are able to receive and buffer so that ...

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Implementing pass point protocol
1 votes

It requires devices (access points and mobile devices) which support IEEE 802.11u/Hotspot 2.0. Wi-Fi.org provides a product finder which provides a list of certified products. Though not on the ...

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Switch features enabled, but not showing in configuration
Accepted answer
1 votes

You would have to check your vendors documentation as to what is enabled or disabled by default. On Cisco devices for example CDP is enabled, but LLDP is not enabled by default. There are some ...

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creating redundant links using Cisco SG500 series switches
0 votes

I assume you mean the SG500X-48P based on your diagram having 10GB between the switches. The SG500X has enough ports to accomplish your desired topology, and you can use standard SFP ports to suport ...

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Toggle Switch for an Ethernet Cable
0 votes

Check out the cabling for Ethernet of twisted pair. If you're using 1000BASE-T (1 gig ethernet) then all four pairs are used for communication, so technically killing one pair would disable 1GE ...

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How to divide an IPv4 network into subnets of different sizes as efficiently as possible?
0 votes

You could use 172.16.0.128/25 and then 172.16.1.0/25 for the next. I like to avoid zero subnets though, but it is a valid range. If you do the math you would see that the network address for 172.16....

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Copy running config in one line
0 votes

It might be easier to enable SCP server on the router and script the backup from the other side. Instead of trying to push it it from the router, why not pull it from the backup server? You will have ...

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