Hello and good evening, I have some big issues on my network. I have some servers that have some VMs on them. When i try to ping this servers in a network that doesn't belongs to them, sometimes ping works, sometimes not, but with the VMs it seems ...
Forum Posts
Hello, I am facing a strange issue with multicast and IGMP protocol between a 3750 and an Aruba switch. My 3750 is the IGMP Querier on a vlan Receiver are on this switch I have others some cisco switch in the chain with IP camera on these and no prob...
Hello I am in trouble with Juniper and Cisco switches.The link from Juniper to Cisco is uplink and the link from Cisco to Juniper is downlink.The problem is that, from Juniper I give to Cisco Vlan 900.The Cisco receive vlan 900 but it's work few min...
Is it possible to create a trunk from nexus 93108TC-EX to a 3850 using CVR-QSFP-SFP10G to downgrade from 40gb to 10gb? the 9k is using NXOS mode.
Hi, I want to stack 6 x 3850 mix models, is this possible. I have gone through the data sheet and it says i can stack 9 regardless of whether its is 12/24/48 ports or fiber/copper/POE or any modules. So can i stack 3 x Cisco 3850-T and 3 x Cisco...
Resolved! qos - How traffic congestion happens?
Hi all, We can do policing/shaping at ingress traffic. If the traffic is already rate limited/shaped at ingress, then what’s the use of WRED-Weighted random early detection? How the congestion can happen, because already the traffic flow is policed. ...
Resolved! RIP Version 1 and 2 Comptability
Hello all,As per the uploaded topology, i configured 3 routers to run RIP v2 and 1 router to run RIP v1. As you see, RTA and RTB are connected to the same subnet as RTC. If i configure RTA and RTB to send and receive RIP v1 with RTC, the result is t...
Resolved! What is FPGA?
Hi Experts, Can anyone help me to understand what is FPGA in cisco switches?? Actually I have got a query from my boss to understand the features of FPGA and let him know if we can leverage the features within our organization.To be very honest I tri...
Hi there, I'm not able to ssh to other devices using 3850 Switch as SSH client. PS: 3850 switch IOS version is: 16.3.5b (ssh client) the ssh server is an ASA (9.6.3) below is the Syslog: how can I solve it?
Resolved! arp on two devices
Hello, We have a 2801 cisco router & 3560 switch, whose configurations are given.These form the connectivity for our site. Router does the connections with service provider & has routing on it.The switch is only configured with default gateway, but t...
Last night we upgraded one of our offices 3560 (WS-C3560-24PS) to 12.2(55) SE6. With these switches, NTP is no longer working. The NTP server is a router at this office. Switches at this office that were not upgraded (3750) are getting NTP norma...
Resolved! In vbs,how to telent Non-standard port ?
I want to use vbs script to check equipment with secureCRT。I want to telnet equipment with Non-standard port.I search for this on the internet ,but didn't get it .Does anyone know this or other solution? This is telnet Standard port with vbs : cr...
Hi All,I have a small DHCP scope for 16 IP address, just for wireless AP configured for them. But some time i get alert for "access point dissociation from wlc" when i checked and found AP does not have any IP. then i checked at the Switch and found...
Hi,I am getting this error message many times in my Router :IP_VFR-4-FRAG_TABLE_OVERFLOW: Vlan1: the fragment table has reached its maximum threshold 16What can be the impact of the same in the prformance?Please suggest.
