Hello, I am studying CCNA and have a question about MAC address table.Let say I have a switch which have f0/3 connected with a PC with MAC address 0000.0000.0011.Now i remove the cable of f0/3 and connect to f0/4.By default they should be some protoc...
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Hey all,I am experiencing some issues with Port-Based Address Allocation responding with a NAK to lease time renewals from nodes. I was able to reproduce the problem on at least the following system/software combinations:C9500-48Y4C (version 17.3.2a)...
Hello team,I have issues with new deployment of stackwise virtual on C950048Y4C. We are using Hu1/0/49 and Hu1/0/51 for stackwise virtual.Here is the configuration of the VSS:Master:On Switch 1:Device>enableSwitch#switch priority 15Device#configure t...
I'm trying to do something simple and I keep logging myself out. Here are the commands I enter in this order.>username cisco privilege 15 secret 5 cisco>aaa new-model>aaa authentication login default local>aaa authorization exec default local if-auth...
One of my customers has the following situation: In the connections between the Switch and the ASA firewall, all VLANs are not connected to the firewall with a single trunk port, separate access VLAN ports are configured for each VLAN and each port i...
Hello, please i need to know if the QinQ is supported in DNA Essentials with C9200L? Thank you for your help.
Hi, we have one C3850 with one network module NM2-10G. Currently the 2x10 SFP are already inserted into T1/1/3 and T1/1/4. So two spare ports G1/1/1 and G1/1/2. Can we use SFP-10G-SR for this 2x 1G ports? can anyone pls advise ? thanks in advance.
Hello guys, I need your help. I have 5 switches cisco CBS 350-POE.I have to configure the RSPAN to monitor all the vlans (1,10,20,110,200) on all the switches. The switches are A - B - C - D - E and are connected in this way:configuration on A - B - ...
Hello,We have two buildings in our campus which are quite close roughly 50 yards or so and we have an old Cisco 3560 connection back to an old switch in our building. They are using large SFPs and SC connectors. This set up is currently working but w...
Working on a customer site and having a brain fart. Normally we do a static route from our onsite Layer 3 Switch over to the onsite Customer Core Layer 3 switch. Normally we subnet the devices on our side with a private IP of 192.168.x.x and the ip r...
Why when connecting two Cisco SF 300-28 ports together via the LINK/ACT ports, will they not pass VLAN traffic?
We just installed some IP-Phones and we are hearing some calls cutting in and out. Talked to the provider and they said that enabling QOS could possibly help. Could I get some guidance with this, I have tried to look into Auto-QOS and tried to set it...
Hello,I have a cisco switch 3650. This switch connects to two nexus switches (and then the nexus switches to one FG firewall (routing)). The tengigabitethernet 1/1 and the 1/2 are in trunk mode and connects to one nexus and the tengigabitethernet 1/2...
Hi, I'm studying HSRP, but I don't understand each item in the configuration of HSRP. Please explain.Below is the one I've actually taken only the configuration from the HSRP-applied equipment that I've referenced to study. Please refer to it and exp...
Hello guys. I'm getting this error in the logs what is the fix? cisco Nexus 5596 Chassis ("O2 48X10GE/Modular Supervisor") %NOHMS-2-NOHMS_ENV_SERR: Bus:Dev.Func 02:05.00 Vendor 0x10b5 Device0x8618 is giving out high correctable Error
