in server/src/jetbrains/buildServer/agentsDiff/BuildAgentsDiffUtils.java [13:19]
static String getDiffPermalink(@NotNull String agentAId, @Nullable String agentBId) {
String diffPermalink = "/agents.html?tab=diff#agentA=" + agentAId;
if (agentBId != null) {
diffPermalink += "&agentB=" + agentBId;
}
return diffPermalink;
}