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Cisco 11503 - CSS Content Services Switch User Manual

Cisco 11503 - CSS Content Services Switch
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4-41
Cisco Content Services Switch Administration Guide
OL-5647-02
Chapter 4 Using the CSS Logging Features
Frequently Queried Log Messages
FLOWMGR-7: Exceeded outflow SYN
count
For a Layer 5 rule, the CSS is trying to
establish a connection with the
backend server. The CSS sent four
SYNs to the backend server and did not
get a response.
For the CSS to establish a connection
with the backend server, the CSS must
receive the following TCP/IP
handshake:
SYN->
<-SYN/ACK
ACK->
GET->
After receiving the GET message, the
CSS opens the backend connection. At
that point, the log message is
generated.
When several of these log messages
occur, there might be a malfunctioning
server. The server problem could be
from keepalives, or from regular TCP
HTTP traffic. Make sure the port 80
sockets are not full on the servers.
Table 4-8 Cisco 11500 Series CSS Log Messages (continued)
Log Message (sys.log: Subsystem
Name, Level, and Message) Cause and Resolution

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Cisco 11503 - CSS Content Services Switch Specifications

General IconGeneral
BrandCisco
Model11503 - CSS Content Services Switch
CategorySwitch
LanguageEnglish

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