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Results tagged with cisco
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user 630
The major provider of networking equipment. This is a generic tag to be used when no more specific tags are available. See the list of tags in Help Center Tag page.
5
votes
Cisco: monitoring users input
There's open source software if you don't have or can't afford Cisco ACS or similar products. …
- 7,134
6
votes
2
answers
984
views
What are the best Cisco 6500 Ethernet modules for iSCSI?
I have a SAN environment built on FC (Fibre Channel), which is a standalone network from the rest of the DC Ethernet network, and have only Cisco 6509s with Sup720s available for this project. … Please give specific Cisco modules or model numbers in answers. …
- 7,134
6
votes
How are two "ip helper-address" statements handled?
Your ip-helper is the correct way to do this for redundancy and is the recommended method.
The DHCPDiscovery (broadcast) gets picked up by the ip-helper and then unicasts to each DHCP server with the …
- 7,134
4
votes
Accepted
Does 2504 WLC support LAG?
Yes, the 2504 supports LAG in v7.4. Your first guide refers to v7.0.116.0 and the second guide written in 5/2013 implies v7.4. Enabling LAG requires a reboot of the WLC and has limitations similar t …
- 7,134
6
votes
1
answer
2k
views
WS-X45-SUP6-E / WS-X45-SUP7-E compatibility w/4510R (non-E)
My VAR says "no" after checking with Cisco. Is the VAR or these EOL announcements correct (or am I misreading them)? … End-of-Sale and End-of-Life Announcement for the Select Cisco Catalyst 4500 Non-E-Series Supervisor Engines
End-of-Sale and End-of-Life Announcement for the Cisco Catalyst 4500 Supervisor Engine 6-E …
- 7,134
11
votes
3
answers
1k
views
Does Cisco 6500 VSS improve or hurt MTBF?
I understand the benefits of the Cisco 6500 VSS with the obvious selling points of single management, single routing instance, STP elimination, port-channels across chassis, etc. … With two standalone Cisco 6500s that may have L3 and L2 port-channels between them, they at least have no operational dependency on one another through the control-plane. …
- 7,134
3
votes
How can I avoid having to change the vlan back and forth when imaging pc's
A few options come to mind.
If you have 802.1X in your environment, you could push the VLAN assignement to the port based on a username used to authenticate after the imaging is done. One username …
- 7,134
2
votes
Cisco BGP - see communities on advertised-routes?
Set up another BGP peer or route-reflector that you control with identical policies . Of course, make sure you're not blackholing any traffic toward this peer.
- 7,134
4
votes
Accepted
What behavior results from both ip dhcp pool and ip helper-address?
Is the DHCP addresses given from the helper? or from the local pool?
You would get two possible DHCPOffer's from the device's internal DHCP pool and the DHCP server defined by the helper-address, …
- 7,134
3
votes
1
answer
601
views
What does "business-to-bezel” and "bezel-to-business" airflow mean?
The Cisco 3900 Series routers ship with a default fan assembly that
drives “business-to-bezel” airflow in the router chassis. …
- 7,134
4
votes
2
answers
2k
views
Is migrating to VRF or rolling-back an easy proposition?
If VRF is implemented for routing table separation such as having an overlay network for a guest network that doesn't mix with regular LAN routing, is migrating to it easily done on Cisco switches (4500 …
- 7,134
6
votes
1
answer
2k
views
Can FlexConnect ACLs be combined with Local mode ACLs on the same Cisco WLC WLAN?
There's a limitation (stated below in Cisco's documentation) that FlexConnect ACLs in Cisco WLC cannot be combined in the same WLAN with local mode ACLs. … Reference: Configuring FlexConnect in Cisco Wireless LAN Controller Configuration Guide, Release 7.2 …
- 7,134
2
votes
Accepted
Private VLANs on a switch that doesn't support Private VLAN trunks
A promiscuous trunk on the 3750 toward the 4500 is what you need to go across a non-PVLAN-aware switch and keep security intact.
See Promiscuous PVLAN Trunk Ports
- 7,134
10
votes
1
answer
4k
views
Cisco WLC External WebAuth Apparent Random Behavior
On Cisco 5508 v7.2.103.0, I have a couple of WLANs configured. Call them ABC and XYZ for the sake of this question. ABC uses 802.1X and gets a splash page redirect URL pushed down. …
- 7,134
16
votes
2
answers
4k
views
Output Drops on Serial interface: Better queueing or Output queue size?
The platform is a Cisco 7204VXR NPE-G2. Serial queuing is fifo. … Looking at the Cisco docs on input & output queue drops, incrementing outbound queue size is not recommended as the packets are already on the router and it would be better to drop at input so TCP can …
- 7,134