- play_arrow Port Security
- play_arrow Port Security Overview
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- play_arrow IPSec
- play_arrow Understanding IPsec and Security Associations
- play_arrow IPsec Configurations and Examples
- play_arrow Configuring IPsec Security Associations
- play_arrow Using Digital Certificates for IPsec
- play_arrow Additional IPsec Options
- play_arrow Configuring IPsec Dynamic Endpoints
- play_arrow Additional ES and AS PIC Configuration Examples
- Example: ES PIC Manual SA Configuration
- Example: AS PIC Manual SA Configuration
- Example: ES PIC IKE Dynamic SA Configuration
- Example: AS PIC IKE Dynamic SA Configuration
- Example: IKE Dynamic SA Between an AS PIC and an ES PIC Configuration
- Example: AS PIC IKE Dynamic SA with Digital Certificates Configuration
- Example: Dynamic Endpoint Tunneling Configuration
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- play_arrow Digital Certificates
- play_arrow Configuring Digital Certificates
- Public Key Cryptography
- Configuring Digital Certificates
- Configuring Digital Certificates for an ES PIC
- IKE Policy for Digital Certificates on an ES PIC
- Configuring Digital Certificates for Adaptive Services Interfaces
- Configuring Auto-Reenrollment of a Router Certificate
- IPsec Tunnel Traffic Configuration
- Tracing Operations for Security Services
- play_arrow Configuring SSH and SSL Router Access
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- play_arrow Trusted Platform Module
- play_arrow MACsec
- play_arrow Understanding MACsec
- play_arrow MACsec Examples
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- play_arrow DHCP Protection
- play_arrow DHCPv4 and DHCPv6
- play_arrow DHCP Snooping
- Understanding DHCP Snooping (ELS)
- Understanding DHCP Snooping (non-ELS)
- Understanding DHCP Snooping Trust-All Configuration
- Enabling DHCP Snooping (non-ELS)
- Configuring Static DHCP IP Addresses
- Example: Protecting Against Address Spoofing and Layer 2 DoS Attacks
- Example: Protecting Against DHCP Snooping Database Attacks
- Example: Protecting Against ARP Spoofing Attacks
- Example: Prioritizing Snooped and Inspected Packet
- Configuring DHCP Security with Q-in-Q Tunneling in Service Provider Style
- play_arrow DHCP Option 82
- play_arrow Dynamic ARP Inspection (DAI)
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- play_arrow IP Source Guard
- play_arrow Understanding IP Source Guard
- play_arrow IP Source Guard Examples
- Example: Configuring IP Source Guard on a Data VLAN That Shares an Interface with a Voice VLAN
- Example: Configuring IP Source Guard with Other EX Series Switch Features to Mitigate Address-Spoofing Attacks on Untrusted Access Interfaces
- Example: Configuring IP Source Guard and Dynamic ARP Inspection to Protect the Switch from IP Spoofing and ARP Spoofing
- Example: Configuring IPv6 Source Guard and Neighbor Discovery Inspection to Protect a Switch from IPv6 Address Spoofing
- Configuring IP Source Guard to Mitigate the Effects of Source IP Address Spoofing and Source MAC Address Spoofing
- Example: Configuring IP Source Guard and Dynamic ARP Inspection on a Specified Bridge Domain to Protect the Devices Against Attacks
- Example: Configuring IPv6 Source Guard and Neighbor Discovery Inspection to Protect a Switch from IPv6 Address Spoofing
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- play_arrow IPv6 Access Security
- play_arrow Neighbor Discovery Protocol
- play_arrow SLAAC Snooping
- play_arrow Router Advertisement Guard
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- play_arrow Control Plane Distributed Denial-of-Service (DDoS) Protection and Flow Detection
- play_arrow Control Plane DDoS Protection
- play_arrow Flow Detection and Culprit Flows
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- play_arrow Unicast Forwarding
- play_arrow Unicast Reverse Path Forwarding
- play_arrow Unknown Unicast Forwarding
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- play_arrow Storm Control
- play_arrow Malware Protection
- play_arrow Juniper Malware Removal Tool
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- play_arrow Configuration Statements and Operational Commands
Verifying That the Port Error Disable Setting Is Working Correctly
Purpose
Verify that the port error disable setting is working as expected for MAC limited, MAC move limited, and rate-limited interfaces on an EX Series switch, or that MAC limited and storm control interfaces are working as expected for QFX Series switches or NFX Series devices.
Action
Display information about interfaces:
user@switch> show ethernet-switching interfaces Interface State VLAN members Blocking ge-0/0/0.0 up T1122 unblocked ge-0/0/1.0 down default MAC limit exceeded ge-0/0/2.0 down default MAC move limit exceeded ge-0/0/3.0 down default Storm control in effect ge-0/0/4.0 down default unblocked
Meaning
For interfaces disabled by port security features,
the sample output from the show ethernet-switching interfaces command shows the reason that the down interface is disabled:
MAC limit exceeded—The interface is temporarily disabled because of a MAC limit error. The disabled interface is automatically restored to service when the
disable-timeoutexpires.MAC move limit exceeded—The interface is temporarily disabled because of a MAC move limit error. The disabled interface is automatically restored to service when the
disable-timeoutexpires.Storm control in effect —The interface is temporarily disabled because of a storm control error. The disabled interface is automatically restored to service when the
disable-timeoutexpires.
