Core switches sometimes have high latency

Core Network packet-loss

I get 1% packet loss and latency between 200-1000ms when pinging from the switch (cisco 2970) to any directly

Latency to our Core Switch : r/networking

Switches are there to switch. Responding to ping on their SVI/management interfaces is long down the list of priorities for their

High latency to gateway and ISP when multiple switches are

Would moving inter-VLAN routing to an L3 core switch significantly reduce this type of latency? Are there known

How to find the source of increased latency?

Do you have any "dumb" devices feeding this switch that may be the source of the sag even though this switch is not passing much

How to Improve Network Latency When Speed Isn''t the Problem

Network latency isn''t always about bandwidth. Identify bottlenecks, optimize infrastructure, implement QoS, and

HIGH PING LATENCY TO VLAN GATEWAYS

Hi, I am getting high latency while pinging to VLAN gateways, which is created in core switch. The ping status to the

Switch Latency Monitoring Overview

Switch Latency Monitoring Overview The switch latency monitoring feature marks each ingress and egress packet with a timestamp

Switch Buffer vs. Latency: Why Specs Matter in 2026

In this engineering deep dive, the certified architects at Network-Switch will demystify these core concepts,

Slow Ping response when directly connected to Core/Server-Switch

When pinging a server from a PC (Subnet 2) which is directly connected to the Core Switch the response time is about

Network Latency: Types, Causes, and Fixes | Last9

Learn what network latency means, what causes it, and how to fix slowdowns before they start affecting your users.

What Causes High Latency: Troubleshooting Delay

Uncover what causes high latency in your network and how you can troubleshoot. Learn to identify congestion, QoS

8 Most Common Latency Issues & How to Troubleshoot Them

Discover the 8 most common latency issues affecting your network and learn how to troubleshoot them effectively to

Unraveling Latency: The Case of the Silent Packet Dropper on a C9500

Introduction: Recently, we encountered a case involving a Cisco C9500 core switch experiencing high latency affecting

How To Analyze Network Switch Performance: 7 Key Metrics

Learn how to analyze network switch performance with 7 key metrics. Compare throughput, latency, packet loss &

Troubleshooting network latency issues

Compare latency with: Throughput, response time, packet loss, and device CPU/memory utilization. Example: If

How to Fix High Latency and Stop Lag for Good | Premier Broadband

Switching to fiber is the single biggest upgrade you can make to permanently fix high latency. Fiber offers equally fast

What Is Latency in Networking and How to Improve It

It is a crucial metric that measures the responsiveness and speed of data transmission. Latency is typically measured

High latency in Local Area Network

Dear Team, We have around 12 access switches and one core switch, core switch then connected to Firewall, then to

What Factors Affect Ethernet Switch Latency?

Uncover the critical technical mechanisms and hardware decisions that determine Ethernet switch latency, impacting

High latency on switches but not devices

We use PRTG to monitor our network. We have a ping sensor on each switch. The latency and timeouts on some of the switches are

Network Latency: Root Causes and Solutions | Volico

Discover what causes network latency and how to fix it with proven solutions that improve

Network Latency: Causes, Impact and How to Fix It | IR

Network latency (sometimes referred to as lag) is best described as the delay in the time that data takes to transfer across a network.

How can I track down the cause of latency on the internal network

This has caused me to take a good look at our network and I''ve discovered some latency in places that I''ve never

Optimizing Computer Applications for Latency: Part 1

Another high throughput and low latency option for Ethernet networking is the Data Plane Development Kit (DPDK).

networking

High latency/drops between Cisco switches in two locations. How to troubleshoot? Ask Question Asked 13 years, 2 months ago

Ping Latency Issues

Ping an IP on the access switch, an IP on the core switch, and an IP on the gateway at the same time. You should

High latency issue in LAN....

It appears that you are pinging the SVI of VLAN 167 on the core switch. Pinging the SVI (VLAN interface) means that

Causes of High Network Latency and How to Fix it Quickly

High network latency can ruin call quality, slow websites, and frustrate users. Discover the real causes and how to fix