No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

NE40E V800R010C10SPC500 Feature Description - Security 01

This is NE40E V800R010C10SPC500 Feature Description - Security
Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Understanding Obtaining Packet Headers

Understanding Obtaining Packet Headers

Network engineers use the obtaining packet headers feature to obtain packet headers to be sent to central processing units (CPUs) or forwarded. Then they analyze the obtained headers to locate network faults. Figure 16-1 shows how to implement this feature.
Figure 16-1 Obtaining packet headers
  • A network engineer logs in to Device A and configures a packet header obtain policy. This policy defines the interface on which packets will be obtained, access control list (ACL) rule, packet length, and timeout time.
  • When Device A receives packets and sends the packets to its CPU or forwards packets, it replicates the packets based on the configured packet obtaining policy. It then generates an obtained packet file and stores this file on its compact flash (CF) card.
  • The network engineer obtains this packet header obtain file to locate network faults.
The following table lists the differences between obtaining packet headers to be sent to CPUs and obtaining packet headers to be forwarded.
Table 16-1 Difference between obtaining packet headers to be sent to CPUs and obtaining packet headers to be forwarded
Item Obtaining Packet Headers Sent to CPUs Obtaining Forwarded Packet Headers
Object Packets destined to CPUs Forwarded packets
ACL Rule

Supported ACLs:

  • Basic ACL: Values range from 2000 to 2999.
  • Advanced ACL: Values range from 3000 to 3999.
  • Layer 2 ACL: Values range from 4000 to 4999.

Supported ACLs:

  • Basic ACL: Values range from 2000 to 2999.
  • Advanced ACL: Values range from 3000 to 3999.
  • Layer 2 ACL: Values range from 4000 to 4999.
  • Multiprotocol Label Switching (MPLS)-based ACL: Values range from 10000 to 10999.
Impact on Performance Has no impact on system performance. Affects system forwarding performance.
Translation
Download
Updated: 2019-01-03

Document ID: EDOC1100055047

Views: 12749

Downloads: 31

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Share
Previous Next